%0 Journal Article %A Iversen, Mette %A Mazzoleni, Dario %T Minimising convex combinations of low eigenvalues %J ESAIM: Control, Optimisation and Calculus of Variations %D 2014 %P 442-459 %V 20 %N 2 %I EDP-Sciences %U http://www.numdam.org/articles/10.1051/cocv/2013070/ %R 10.1051/cocv/2013070 %G en %F COCV_2014__20_2_442_0