%0 Journal Article %A G. Panina %T Oriented area is a~perfect Morse function %J Algebra i analiz %D 2017 %P 61-69 %V 29 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/item/AA_2017_29_3_a3/ %G ru %F AA_2017_29_3_a3