%0 Journal Article %A Sorin Mardare %T On Pfaff systems with $ {L}^{p}$ coefficients in dimension two %J Comptes Rendus. Mathématique %D 2005 %P 879-884 %V 340 %N 12 %I Elsevier %R 10.1016/j.crma.2005.05.013 %G en %F CRMATH_2005__340_12_879_0