%0 Journal Article %A Coron, J.-M. %T Return method : application to controllability %J Séminaire Goulaouic-Schwartz %Z talk:14 %D 1992-1993 %P 1-11 %I Ecole Polytechnique, Centre de Mathématiques %U https://www.numdam.org/item/SEDP_1992-1993____A14_0/ %G en %F SEDP_1992-1993____A14_0