%0 Journal Article %A Miroslav Brzezina %T Tusk type conditions and thinness for the parabolic operator of order ... %J Manuscripta mathematica %D 1993 %P 21-26 %V 80 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/item/MM2_1993__80_3_155856/ %F MM2_1993__80_3_155856