2011 MacBook Pros Owners Reporting GPU Issues and System Crashes - iClarified
Fixing a 2011 MacBook Pro booting to a Grey Screen - AMD Radeon Video Glitch | Jeff Geerling
SOLVED: Does the 2012 model have the same GPU issues as the 2011? - MacBook Pro 15" Unibody Mid 2012 - iFixit
How To Fix MacBook Pro Graphics Card Issues | Tom's Guide Forum
Apple Initiates Video Repair Program for 2011-2013 MacBook Pros
2011 Apple Macbook Pro Graphics Chip Bypass Repair 15" & 17" Models | eBay
Macbook 2011 Radeon GPU Disable - Real Radeongate Solution.
Apple ignores calls to fix 2011 MacBook Pro failures as problem grows | AppleInsider
MacBook Pro 2011 Graphics Fault - A Possible Fix? [Update : Apple Repaired] - MacAmbulance : Affordable Apple Mac & Windows Support and Web Development for Brighton & Sussex