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@article{FAA_1998_32_3_a3, author = {P. E. Pushkar'}, title = {Maslov {Index} and {Symplectic} {Sturm} {Theorems}}, journal = {Funkcionalʹnyj analiz i ego prilo\v{z}eni\^a}, pages = {35--49}, publisher = {mathdoc}, volume = {32}, number = {3}, year = {1998}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/FAA_1998_32_3_a3/} }
P. E. Pushkar'. Maslov Index and Symplectic Sturm Theorems. Funkcionalʹnyj analiz i ego priloženiâ, Tome 32 (1998) no. 3, pp. 35-49. http://geodesic.mathdoc.fr/item/FAA_1998_32_3_a3/