%0 Journal Article %A M. A. Karpukhin %T Nonmaximality of known extremal metrics on torus and Klein bottle %J Sbornik. Mathematics %D 2013 %P 1728-1744 %V 204 %N 12 %I mathdoc %U http://geodesic.mathdoc.fr/item/SM_2013_204_12_a2/ %G en %F SM_2013_204_12_a2