%0 Journal Article %A Philippe Michel %A Stéphane Mischler %A Benoı̂t Perthame %T General entropy equations for structured population models and scattering %J Comptes Rendus. Mathématique %D 2004 %P 697-702 %V 338 %N 9 %I Elsevier %R 10.1016/j.crma.2004.03.006 %G en %F CRMATH_2004__338_9_697_0