%0 Journal Article %A Yuriy Aminov %A Joanna Witkowska %T Generalization of the H.\,A.~Schwarz theorem on stability of minimal surfaces %J Žurnal matematičeskoj fiziki, analiza, geometrii %D 2007 %P 399-410 %V 3 %I mathdoc %U http://geodesic.mathdoc.fr/item/JMAG_2007_3_a1/ %G en %F JMAG_2007_3_a1