%0 Journal Article %A Luigi Ambrosio %T Existence of minimal energy configurations of nematic liquid crystals with variable degree of orientation. %J Manuscripta mathematica %D 1990 %P 215-228 %V 68 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/MM2_1990__68_2_155524/ %F MM2_1990__68_2_155524