An Braeken Yuri L. Borissov Svetla Nikova Bart Preneel Classification of cubic (n-4)-resilient Boolean functions. 1670-1676 2006 52 IEEE Transactions on Information Theory 4 http://doi.ieeecomputersociety.org/10.1109/TIT.2006.871063 db/journals/tit/tit52.html#BraekenBNP06