%0 Journal Article %A E. R. Avakov %T Stability theorem and extremum conditions for abnormal problems %J Informatics and Automation %D 2015 %P 10-29 %V 291 %I mathdoc %U http://geodesic.mathdoc.fr/item/TRSPY_2015_291_a1/ %G ru %F TRSPY_2015_291_a1