The following publications are possibly variants of this publication: 
- Protecting Obfuscation against Algebraic AttacksBoaz Barak, Sanjam Garg, Yael Tauman Kalai, Omer Paneth, Amit Sahai. eurocrypt 2014: 221-238 [doi] 
- Protecting Obfuscation Against Algebraic AttacksBoaz Barak, Sanjam Garg, Yael Tauman Kalai, Omer Paneth, Amit Sahai. iacr, 2013:631, 2013.  [doi]