Pascale Charpin Enes Pasalic Cédric Tavernier On bent and semi-bent quadratic Boolean functions. 4286-4298 2005 51 IEEE Transactions on Information Theory 12 http://doi.ieeecomputersociety.org/10.1109/TIT.2005.858929 db/journals/tit/tit51.html#CharpinPT05