%0 Journal Article %A A. O. Ivanov %T Calibration forms and new examples of stable and globally minimal surfaces %J Sbornik. Mathematics %D 1992 %P 289-308 %V 71 %N 2 %U http://geodesic.mathdoc.fr/item/SM_1992_71_2_a1/ %G en %F SM_1992_71_2_a1