%0 Journal Article %A Yu. M. Smirnov %T Sets of $H$-fixed points are absolute extensors %J Sbornik. Mathematics %D 1975 %P 85-92 %V 27 %N 1 %U http://geodesic.mathdoc.fr/item/SM_1975_27_1_a6/ %G en %F SM_1975_27_1_a6