Voir la notice de l'article provenant de la source Math-Net.Ru
@article{MZM_1990_48_6_a18, author = {V. N. Kolokoltsov}, title = {The {Maslov} index in infinite-dimensional symplectic geometry}, journal = {Matemati\v{c}eskie zametki}, pages = {142--145}, publisher = {mathdoc}, volume = {48}, number = {6}, year = {1990}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/MZM_1990_48_6_a18/} }
V. N. Kolokoltsov. The Maslov index in infinite-dimensional symplectic geometry. Matematičeskie zametki, Tome 48 (1990) no. 6, pp. 142-145. http://geodesic.mathdoc.fr/item/MZM_1990_48_6_a18/