Double sided geometry doesn't work - Community & Industry Discussion - Epic Developer Community Forums
Backface Culling in Blender For Surprisingly Better Lighting - pixelseek
Double-Sided Materials – Blender Knowledgebase
Double Sided Textures In Blender – polygonartist.
Double Sided Textures In Blender – polygonartist.
Two-sided shading (NOT backfacing) - for animation - CG Cookie
Is it better to have models that have double faces or is it better to have a two-sided material instead? - Pipeline & Plugins - Epic Developer Community Forums
TUTORIAL: Double-Sided Texturing in Cycles - BlenderNation
modeling - How do I create a two sided plane with subsurface scattering for modelling leaves and foliage? - Blender Stack Exchange
Plane with texture alpha(grass) problem. - Game Engine Support and Discussion - Blender Artists Community