%0 Journal Article %A V. G. Turaev %T A cocycle for the symplectic first chern class and the maslov index %J Funkcionalʹnyj analiz i ego priloženiâ %D 1984 %P 43-48 %V 18 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/FAA_1984_18_1_a5/ %G ru %F FAA_1984_18_1_a5