X

Track changes made to this page

If you find this page useful and would like to be notified of changes made to this page, start by inputting your email below.



Privacy policy
Close this window

powered by ChangeDetection

Difference between revisions of "37-033-21181"

m
m
 
(2 intermediate revisions by the same user not shown)
Line 3: Line 3:
 
{| class="wikitable welldetails" width="95%"
 
{| class="wikitable welldetails" width="95%"
 
| Well ID: 37-033-21181
 
| Well ID: 37-033-21181
| style="height=100%; align=center" rowspan="15" | {{#display_map: 40.79125, -78.789805 | width=100% | height=100% }}  
+
| style="height=100%; align=center" rowspan="17" | {{#display_map: 40.791250, -78.789806 | width=100% | height=100% }}
 
|-
 
|-
| County: [[Clearfield County, Pennsylvania|Clearfield]]
+
| Country: United States
 
|-
 
|-
| Municipality: [[Burnside Township, Clearfield County, Pennsylvania|Burnside Township]]
+
| State: Pennsylvania
 +
|-
 +
| County: [[Clearfield_County,_Pennsylvania|Clearfield]]
 +
|-
 +
| Municipality: [[Burnside Township,_Clearfield_County,_Pennsylvania|Burnside Township]]
 
|-
 
|-
 
| Operator Name: [[VERNARD L SHUMAKER]]
 
| Operator Name: [[VERNARD L SHUMAKER]]
Line 15: Line 19:
 
| Farm/Lease Name: FRANK BELLELLA 1
 
| Farm/Lease Name: FRANK BELLELLA 1
 
|-
 
|-
| First Permit Date: 1981-10-16
+
| License Status: ACTIVE
|-
 
| Last Permit Date: 1981-10-16
 
 
|-
 
|-
| Spud Date: 1981-11-01
+
| Spud Date:  
 
|-
 
|-
| Unconventional: No
+
| Permit Date: 1981-10-16
 
|-
 
|-
| Horizontal: No
+
| Well Type: GAS
 
|-
 
|-
| Well Status: INACTIVE
+
| Unconventional Well: N
 
|-
 
|-
| Violations: 0
+
| Configuration: Vertical Well
 
|-
 
|-
| Latitude: 40.79125
+
| Conservation: No
 
|-
 
|-
| Longitude: -78.789805
+
| Latitude: 40.791250
 
|-
 
|-
 +
| Longitude: -78.789806
 
|}
 
|}
== Production Data ==
+
For data sources see<ref>{{cite web
 +
| title = Permits Issued Detail Report
 +
|publisher = [[Pennsylvania Department of Environmental Protection]]
 +
| date = 2019-05-20
 +
| url = http://wellwiki.org/wiki/Pennsylvania_Oil_and_Gas_Data_Sources
 +
| accessdate = 2019-05-21 }}</ref><ref>{{cite web
 +
| title = Spud Data Report
 +
|publisher = [[Pennsylvania Department of Environmental Protection]]
 +
| date = 2019-04-30
 +
| url = http://wellwiki.org/wiki/Pennsylvania_Oil_and_Gas_Data_Sources
 +
| accessdate = 2019-05-16 }}</ref><ref>{{cite web
 +
| title = Oil and Gas Well Pad Report
 +
|publisher = [[Pennsylvania Department of Environmental Protection]]
 +
| date = 2019-05-20
 +
| url = http://wellwiki.org/wiki/Pennsylvania_Oil_and_Gas_Data_Sources
 +
| accessdate = 2019-05-21 }}</ref>
 +
== Well History ==
 
{| class="wikitable sortable" width="95%"
 
{| class="wikitable sortable" width="95%"
!scope="col" | PERIOD
+
!scope="col" | Date
!scope="col" | GAS QUANTITY
+
!scope="col" | Event
!scope="col" | GAS PRODUCTION DAYS
 
!scope="col" | CONDENSATE QUANTITY
 
!scope="col" | CONDENSATE PRODUCTION DAYS
 
!scope="col" | OIL QUANTITY
 
!scope="col" | OIL PRODUCTION DAYS
 
 
|-
 
|-
| 1986-0
+
| 1981-10-16
| style="text-align:right;" | 0.0
+
| New Permit Application
| style="text-align:right;" | 0.0
 
| style="text-align:right;" | 0.0
 
| style="text-align:right;" | 0.0
 
| style="text-align:right;" | 0.0
 
| style="text-align:right;" | 0.0
 
 
|-
 
|-
 +
| 1981-11-01
 +
| Performed Spud Operation
 
|-
 
|-
| 1987-0
+
| 1981-11-12
| style="text-align:right;" | 0.0
+
| Drilling Completion
| style="text-align:right;" | 0.0
 
| style="text-align:right;" | 0.0
 
| style="text-align:right;" | 0.0
 
| style="text-align:right;" | 0.0
 
| style="text-align:right;" | 0.0
 
 
|-
 
|-
 +
| 1981-11-12
 +
| Perforation
 
|-
 
|-
| 1988-0
+
| 1982-01-04
| style="text-align:right;" | 0.0
+
| NEWLY DRILLED
| style="text-align:right;" | 0.0
 
| style="text-align:right;" | 0.0
 
| style="text-align:right;" | 0.0
 
| style="text-align:right;" | 0.0
 
| style="text-align:right;" | 0.0
 
 
|-
 
|-
 +
|}
 +
For data sources see<ref>{{cite web
 +
| title = Compiled from multiple data sources - see Pennsylvania Oil and Gas Data Sources
 +
| date = 2020-02-27
 +
| url = http://wellwiki.org/wiki/Pennsylvania_Oil_and_Gas_Data_Sources
 +
| accessdate = 2020-02-27 }}</ref>
 +
<!--== Fracking Activities ==
 +
==== Fracking Jobs ====
 +
{| class="wikitable sortable" width="95%"
 +
!scope="col" | Job Number
 +
!scope="col" | Job Start Date
 +
!scope="col" | Job End Date
 +
!scope="col" | True Vertical Depth (ft)
 +
!scope="col" | Total Water Volume (gal)
 +
!scope="col" | Total Non-Water Volume (gal)
 
|-
 
|-
| 1989-0
+
|}-->
| style="text-align:right;" | 0.0
+
<!--==== Fluid Composition Data ====
| style="text-align:right;" | 0.0
+
{| class="wikitable sortable" width="95%"
| style="text-align:right;" | 0.0
+
!scope="col" | Job Number
| style="text-align:right;" | 0.0
+
!scope="col" | Trade Name
| style="text-align:right;" | 0.0
+
!scope="col" | Supplier
| style="text-align:right;" | 0.0
+
!scope="col" | Purpose
 +
!scope="col" | Ingredient Name
 +
!scope="col" | CAS Number
 +
!scope="col" | Additive Percentage by Mass
 +
!scope="col" | Job Percentage by Mass
 +
!scope="col" | Mass Used (lb)
 
|-
 
|-
 +
|}-->
 +
 +
<!--== Stimulation Data ==
 +
{| class="wikitable sortable" width="95%"
 +
!scope="col" | Stimulation Date
 +
!scope="col" | Phase Number
 +
!scope="col" | Chemical Agent
 +
!scope="col" | Volume (gal)
 +
!scope="col" | Treating Pressure (psi)
 +
!scope="col" | Breakdown Pressure (psi)
 
|-
 
|-
| 1991-0
+
|}-->
| style="text-align:right;" | 2537.0
+
 
| style="text-align:right;" | 300.0
+
== Production Data ==
| style="text-align:right;" | 0.0
+
{| class="wikitable sortable" width="95%"
| style="text-align:right;" | 0.0
+
!scope="col" | Period
| style="text-align:right;" | 0.0
+
!scope="col" | Operator Name
| style="text-align:right;" | 0.0
+
!scope="col" | Gas Quantity (mcf)
 +
!scope="col" | Gas Production Days
 +
!scope="col" | Oil Quantity (bbl)
 +
!scope="col" | Oil Production Days
 +
!scope="col" | Water Quantity (bbl)
 +
!scope="col" | Water Production Days
 
|-
 
|-
 +
| 1986
 +
| style="text-align: right;" |
 +
| style="text-align: right;" | 0.00
 +
| style="text-align: right;" | 0
 +
| style="text-align: right;" | 0.00
 +
| style="text-align: right;" | 0
 +
| style="text-align: right;" | 0.00
 +
| style="text-align: right;" | 0
 
|-
 
|-
| 2003-0
+
| 1987
| style="text-align:right;" | 301.0
+
| style="text-align: right;" |
| style="text-align:right;" | 365.0
+
| style="text-align: right;" | 0.00
| style="text-align:right;" | 0.0
+
| style="text-align: right;" | 0
| style="text-align:right;" | 0.0
+
| style="text-align: right;" | 0.00
| style="text-align:right;" | 0.0
+
| style="text-align: right;" | 0
| style="text-align:right;" | 0.0
+
| style="text-align: right;" | 0.00
 +
| style="text-align: right;" | 0
 
|-
 
|-
 +
| 1988
 +
| style="text-align: right;" |
 +
| style="text-align: right;" | 0.00
 +
| style="text-align: right;" | 0
 +
| style="text-align: right;" | 0.00
 +
| style="text-align: right;" | 0
 +
| style="text-align: right;" | 0.00
 +
| style="text-align: right;" | 0
 
|-
 
|-
| 2004-0
+
| 1989
| style="text-align:right;" | 524.0
+
| style="text-align: right;" |
| style="text-align:right;" | 365.0
+
| style="text-align: right;" | 0.00
| style="text-align:right;" | 0.0
+
| style="text-align: right;" | 0
| style="text-align:right;" | 0.0
+
| style="text-align: right;" | 0.00
| style="text-align:right;" | 0.0
+
| style="text-align: right;" | 0
| style="text-align:right;" | 0.0
+
| style="text-align: right;" | 0.00
 +
| style="text-align: right;" | 0
 
|-
 
|-
 +
| 1991
 +
| [[OIL & GAS SVC INC]]
 +
| style="text-align: right;" | 2537.00
 +
| style="text-align: right;" | 300
 +
| style="text-align: right;" | 0.00
 +
| style="text-align: right;" | 0
 +
| style="text-align: right;" | 0.00
 +
| style="text-align: right;" | 0
 
|-
 
|-
| 2005-0
+
| 2003
| style="text-align:right;" | 327.0
+
| [[VERNARD L SHUMAKER]]
| style="text-align:right;" | 365.0
+
| style="text-align: right;" | 301
| style="text-align:right;" | 0.0
+
| style="text-align: right;" | 365
| style="text-align:right;" | 0.0
+
| style="text-align: right;" | 0.00
| style="text-align:right;" | 0.0
+
| style="text-align: right;" | 0
| style="text-align:right;" | 0.0
+
| style="text-align: right;" | 0.00
 +
| style="text-align: right;" | 0
 
|-
 
|-
 +
| 2004
 +
| [[VERNARD L SHUMAKER]]
 +
| style="text-align: right;" | 524
 +
| style="text-align: right;" | 365
 +
| style="text-align: right;" | 0.00
 +
| style="text-align: right;" | 0
 +
| style="text-align: right;" | 0.00
 +
| style="text-align: right;" | 0
 
|-
 
|-
| 2007-0
+
| 2005
| style="text-align:right;" | 260.0
+
| [[VERNARD L SHUMAKER]]
| style="text-align:right;" | 365.0
+
| style="text-align: right;" | 327
| style="text-align:right;" | 0.0
+
| style="text-align: right;" | 365
| style="text-align:right;" | 0.0
+
| style="text-align: right;" | 0.00
| style="text-align:right;" | 0.0
+
| style="text-align: right;" | 0
| style="text-align:right;" | 0.0
+
| style="text-align: right;" | 0.00
 +
| style="text-align: right;" | 0
 
|-
 
|-
 +
| 2007
 +
| [[VERNARD L SHUMAKER]]
 +
| style="text-align: right;" | 260.00
 +
| style="text-align: right;" | 365
 +
| style="text-align: right;" | 0.00
 +
| style="text-align: right;" | 0
 +
| style="text-align: right;" | 0.00
 +
| style="text-align: right;" | 0
 
|-
 
|-
| 2009-0
+
| 2009
| style="text-align:right;" | 251.0
+
| [[VERNARD L SHUMAKER]]
| style="text-align:right;" | 365.0
+
| style="text-align: right;" | 251.00
| style="text-align:right;" | 0.0
+
| style="text-align: right;" | 365
| style="text-align:right;" | 0.0
+
| style="text-align: right;" | 0.00
| style="text-align:right;" | 0.0
+
| style="text-align: right;" | 0
| style="text-align:right;" | 0.0
+
| style="text-align: right;" | 0.00
 +
| style="text-align: right;" | 0
 
|-
 
|-
 +
| 2010
 +
| [[VERNARD L SHUMAKER]]
 +
| style="text-align: right;" | 194.00
 +
| style="text-align: right;" | 365
 +
| style="text-align: right;" | 0.00
 +
| style="text-align: right;" | 0
 +
| style="text-align: right;" | 0.00
 +
| style="text-align: right;" | 0
 
|-
 
|-
| 2010-0
+
| 2012
| style="text-align:right;" | 194.0
+
| [[VERNARD L SHUMAKER]]
| style="text-align:right;" | 365.0
+
| style="text-align: right;" | 176.00
| style="text-align:right;" | 0.0
+
| style="text-align: right;" | 365
| style="text-align:right;" | 0.0
+
| style="text-align: right;" | 0.00
| style="text-align:right;" | 0.0
+
| style="text-align: right;" | 0
| style="text-align:right;" | 0.0
+
| style="text-align: right;" | 0.00
 +
| style="text-align: right;" | 0
 
|-
 
|-
 +
| 2013
 +
| [[VERNARD L SHUMAKER]]
 +
| style="text-align: right;" | 220.00
 +
| style="text-align: right;" | 365
 +
| style="text-align: right;" | 0.00
 +
| style="text-align: right;" | 0
 +
| style="text-align: right;" | 0.00
 +
| style="text-align: right;" | 0
 
|-
 
|-
| 2012-0
+
| 2014
| style="text-align:right;" | 176.0
+
| [[VERNARD L SHUMAKER]]
| style="text-align:right;" | 365.0
+
| style="text-align: right;" | 284.00
| style="text-align:right;" | 0.0
+
| style="text-align: right;" | 365
| style="text-align:right;" | 0.0
+
| style="text-align: right;" | 0.00
| style="text-align:right;" | 0.0
+
| style="text-align: right;" | 0
| style="text-align:right;" | 0.0
+
| style="text-align: right;" | 0.00
 +
| style="text-align: right;" | 0
 
|-
 
|-
 +
| 2015
 +
| [[VERNARD L SHUMAKER]]
 +
| style="text-align: right;" | 267.00
 +
| style="text-align: right;" | 365
 +
| style="text-align: right;" | 0.00
 +
| style="text-align: right;" | 0
 +
| style="text-align: right;" | 0.00
 +
| style="text-align: right;" | 0
 
|-
 
|-
| 2013-0
+
| 2016
| style="text-align:right;" | 220.0
+
| [[VERNARD L SHUMAKER]]
| style="text-align:right;" | 365.0
+
| style="text-align: right;" | 550.00
| style="text-align:right;" | 0.0
+
| style="text-align: right;" | 365
| style="text-align:right;" | 0.0
+
| style="text-align: right;" | 0.00
| style="text-align:right;" | 0.0
+
| style="text-align: right;" | 0
| style="text-align:right;" | 0.0
+
| style="text-align: right;" | 0.00
 +
| style="text-align: right;" | 0
 
|-
 
|-
 +
| 2017
 +
| [[VERNARD L SHUMAKER]]
 +
| style="text-align: right;" | 189.00
 +
| style="text-align: right;" | 365
 +
| style="text-align: right;" | 0.00
 +
| style="text-align: right;" | 0
 +
| style="text-align: right;" | 0.00
 +
| style="text-align: right;" | 0
 
|-
 
|-
| 2014-0
+
| 2018
| style="text-align:right;" | 284.0
+
| [[VERNARD L SHUMAKER]]
| style="text-align:right;" | 365.0
+
| style="text-align: right;" | 130.00
| style="text-align:right;" | 0.0
+
| style="text-align: right;" | 365
| style="text-align:right;" | 0.0
+
| style="text-align: right;" | 0.00
| style="text-align:right;" | 0.0
+
| style="text-align: right;" | 0
| style="text-align:right;" | 0.0
+
| style="text-align: right;" | 0.00
 +
| style="text-align: right;" | 0
 
|-
 
|-
 
|}
 
|}
 
For data sources see<ref>{{cite web
 
For data sources see<ref>{{cite web
  | title = Oil and Gas Historical Production Report
+
  | title =Oil and Gas Production Reports
| publisher = [[Pennsylvania Department of Environmental Protection]]
+
|publisher = [[Pennsylvania Department of Environmental Protection]]
| date = 2015-05-26
+
| date = 2019-03-31
  | url = http://wellwiki.org/wiki/Pennsylvania_Oil_and_Gas_Data_Sources#Production
+
  | url = http://wellwiki.org/wiki/Pennsylvania_Oil_and_Gas_Data_Sources
  | accessdate = 2015-05-27 }}</ref>
+
  | accessdate = 2019-05-21 }}</ref>
 
== Waste Data ==
 
== Waste Data ==
 
{| class="wikitable sortable" width="95%"
 
{| class="wikitable sortable" width="95%"
!scope="col" | PERIOD
+
!scope="col" | Period
!scope="col" | TYPE
+
!scope="col" | Operator
!scope="col" | QUANTITY
+
!scope="col" | Waste Type
!scope="col" | UNITS
+
!scope="col" | Quantity
!scope="col" | DISPOSAL METHOD
+
!scope="col" | Disposal Method
!scope="col" | WASTE FACILITY PERMIT ID
+
!scope="col" | Waste Facility ID
!scope="col" | WASTE FACILITY NAME
 
!scope="col" | FACILITY CITY
 
!scope="col" | FACILITY STATE
 
 
|-
 
|-
| 2003-0
+
| 2003
| BRINE
+
| [[VERNARD L SHUMAKER]]
| style="text-align:right;" | 0.01
+
| Brine
| Bbl
+
| style="text-align: right;" | 0.01 Bbl
| BRINE OR INDUSTRIAL WASTE TREATMENT PLT
+
| Brine or Industrial Waste Treatment Plt
|
 
|
 
|
 
 
|  
 
|  
 
|-
 
|-
|-
+
| 2004
| 2004-0
+
| [[VERNARD L SHUMAKER]]
| BRINE
+
| Brine
| style="text-align:right;" | 0.01
+
| style="text-align: right;" | 0.01 Bbl
| Bbl
+
| Brine or Industrial Waste Treatment Plt
| BRINE OR INDUSTRIAL WASTE TREATMENT PLT
 
|
 
|
 
|
 
 
|  
 
|  
 
|-
 
|-
|-
+
| 2005
| 2005-0
+
| [[VERNARD L SHUMAKER]]
| BRINE
+
| Brine
| style="text-align:right;" | 0.01
+
| style="text-align: right;" | 0.01 Bbl
| Bbl
+
| Brine or Industrial Waste Treatment Plt
| BRINE OR INDUSTRIAL WASTE TREATMENT PLT
 
|
 
|
 
|
 
 
|  
 
|  
 
|-
 
|-
 
|}
 
|}
 
For data sources see<ref>{{cite web
 
For data sources see<ref>{{cite web
  | title = Oil and Gas Historical Waste Report
+
  | title =Oil and Gas Waste Reports
| publisher = [[Pennsylvania Department of Environmental Protection]]
+
|publisher = [[Pennsylvania Department of Environmental Protection]]
| date = 2015-05-26
+
| date = 2019-03-31
  | url = http://wellwiki.org/wiki/Pennsylvania_Oil_and_Gas_Data_Sources#Waste
+
  | url = http://wellwiki.org/wiki/Pennsylvania_Oil_and_Gas_Data_Sources
  | accessdate = 2015-05-26 }}</ref>
+
  | accessdate = 2019-05-21 }}</ref>
== Inspection Data ==
+
<!--== Inspection Data ==
 +
==== Inspections Performed ====
 
{| class="wikitable sortable" width="95%"
 
{| class="wikitable sortable" width="95%"
!scope="col" | INSPECTION ID
+
!scope="col" | Inspection ID
!scope="col" | DATE
+
!scope="col" | Inspection Category
!scope="col" | DESCRIPTION
+
!scope="col" | Inspection Date
!scope="col" | COMMENT
+
!scope="col" | Inspection Type
!scope="col" | VIOLATION ID
+
!scope="col" | Inspection Result
!scope="col" | VIOLATION CODE
+
!scope="col" | Inspection Comments
!scope="col" | VIOLATION_COMMENT
+
|-
|}
+
|}-->
For data sources see<ref>{{cite web
+
<!--==== Violations Commited ====
| title = Oil and Gas Historical Inspection Report
+
{| class="wikitable sortable" width="95%"
| publisher = [[Pennsylvania Department of Environmental Protection]]
+
!scope="col" | Inspection ID
| date = 2015-05-26
+
!scope="col" | Violation ID
| url = http://wellwiki.org/wiki/Pennsylvania_Oil_and_Gas_Data_Sources#Inspections
+
!scope="col" | Violation Date
| accessdate = 2015-05-27 }}</ref>
+
!scope="col" | Date Resolved
== References ==
+
!scope="col" | Violation Code
{{reflist}}
+
!scope="col" | Violation Type
 +
!scope="col" | Violation Comments
 +
|-
 +
|}-->
 +
<!--==== Penalties Applied ====
 +
{| class="wikitable sortable" width="95%"
 +
!scope="col" | Violation ID
 +
!scope="col" | Penalty ID
 +
!scope="col" | Penalty Code
 +
!scope="col" | Penalty Status
 +
!scope="col" | Penalty Date
 +
!scope="col" | Enforcement Date
 +
!scope="col" | Penalty Amount
 +
!scope="col" | Amount Collected
 +
|-
 +
|}-->
 +
 
 +
==References==
 +
<references/>
 
__NOEDITSECTION__
 
__NOEDITSECTION__
[[Category:Wells]]
+
[[Category:Pennsylvania Wells]]

Latest revision as of 21:52, 22 May 2020

Well Details

Well ID: 37-033-21181
Loading map...
Country: United States
State: Pennsylvania
County: Clearfield
Municipality: Burnside Township
Operator Name: VERNARD L SHUMAKER
Well Pad ID:
Farm/Lease Name: FRANK BELLELLA 1
License Status: ACTIVE
Spud Date:
Permit Date: 1981-10-16
Well Type: GAS
Unconventional Well: N
Configuration: Vertical Well
Conservation: No
Latitude: 40.791250
Longitude: -78.789806

For data sources see[1][2][3]

Well History

Date Event
1981-10-16 New Permit Application
1981-11-01 Performed Spud Operation
1981-11-12 Drilling Completion
1981-11-12 Perforation
1982-01-04 NEWLY DRILLED

For data sources see[4]


Production Data

Period Operator Name Gas Quantity (mcf) Gas Production Days Oil Quantity (bbl) Oil Production Days Water Quantity (bbl) Water Production Days
1986 0.00 0 0.00 0 0.00 0
1987 0.00 0 0.00 0 0.00 0
1988 0.00 0 0.00 0 0.00 0
1989 0.00 0 0.00 0 0.00 0
1991 OIL & GAS SVC INC 2537.00 300 0.00 0 0.00 0
2003 VERNARD L SHUMAKER 301 365 0.00 0 0.00 0
2004 VERNARD L SHUMAKER 524 365 0.00 0 0.00 0
2005 VERNARD L SHUMAKER 327 365 0.00 0 0.00 0
2007 VERNARD L SHUMAKER 260.00 365 0.00 0 0.00 0
2009 VERNARD L SHUMAKER 251.00 365 0.00 0 0.00 0
2010 VERNARD L SHUMAKER 194.00 365 0.00 0 0.00 0
2012 VERNARD L SHUMAKER 176.00 365 0.00 0 0.00 0
2013 VERNARD L SHUMAKER 220.00 365 0.00 0 0.00 0
2014 VERNARD L SHUMAKER 284.00 365 0.00 0 0.00 0
2015 VERNARD L SHUMAKER 267.00 365 0.00 0 0.00 0
2016 VERNARD L SHUMAKER 550.00 365 0.00 0 0.00 0
2017 VERNARD L SHUMAKER 189.00 365 0.00 0 0.00 0
2018 VERNARD L SHUMAKER 130.00 365 0.00 0 0.00 0

For data sources see[5]

Waste Data

Period Operator Waste Type Quantity Disposal Method Waste Facility ID
2003 VERNARD L SHUMAKER Brine 0.01 Bbl Brine or Industrial Waste Treatment Plt
2004 VERNARD L SHUMAKER Brine 0.01 Bbl Brine or Industrial Waste Treatment Plt
2005 VERNARD L SHUMAKER Brine 0.01 Bbl Brine or Industrial Waste Treatment Plt

For data sources see[6]

References