@conference { LL07c,
author = {   Langevin, Philippe and Leander, Gregor   },
title  = {   Classification of Boolean quartic forms in eight variables   },
booktitle = {   Boolean Functions in Cryptology anf Information Security   },
month  = {   September   },
organization = {   NATO Advanced Study Institute   },
address = {   Moscou, Russie   },
year = {2007},
rang = {A},
url  =  {http://langevin.univ-tln.fr/recherche/conference/rm48.pdf},
}