%0 Journal Article %A Rieger, Marc Oliver %T Abstract variational problems with volume constraints %J ESAIM: Control, Optimisation and Calculus of Variations %D 2004 %P 84-98 %V 10 %N 1 %I EDP-Sciences %U http://archive.numdam.org/articles/10.1051/cocv:2003034/ %R 10.1051/cocv:2003034 %G en %F COCV_2004__10_1_84_0