%0 Journal Article %A Hlaváček, Ivan %T On a semi-variational method for parabolic equations. I %J Applications of Mathematics %D 1972 %P 327-351 %V 17 %N 5 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.21136/AM.1972.103427/ %R 10.21136/AM.1972.103427 %G en %F 10_21136_AM_1972_103427