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Parvaresh, Farzad; Etkin, Raul . (2012). [IEEE 2012 IEEE International Symposium on Information Theory - ISIT - Cambridge, MA, USA (2012.07.1-2012.07.6)] 2012 IEEE International Symposium on Information Theory Proceedings - Superposition of binary and Gaussian codebooks to relay data in diamond networks. , (), 940–944. doi:10.1109/isit.2012.6284701 
An interview with Sci-Hub Founder Alexandra Elbakyan,Who exactly should pay for academic research