%0 Journal Article %A Rahm, Alexander D. %T On a question of Serre %J Comptes Rendus. Mathématique %D 2012 %P 741-744 %V 350 %N 15-16 %I Elsevier %U http://www.numdam.org/articles/10.1016/j.crma.2012.09.001/ %R 10.1016/j.crma.2012.09.001 %G en %F CRMATH_2012__350_15-16_741_0