Four-dimensional integrale Hamiltonian systems with simple singular points (topological aspects) by Umanskiy, Ya. L., Lerman, L. M. fromTranslations of mathematical monographs 0 Type: Book
Four-dimensional integrable Hamiltonian systems with simple singular points (topological aspects) by Umanskiy, Ya. L., Lerman, L.M fromTranslations of mathematical monographs 0 Type: Book
Four-dimensional integrable Hamiltonian systems with simple singular points: topological aspects by Lerman, Lev M., Umanskiy, Ya. L. fromTranslations of mathematical monographs 0 Type: Book
Four-dimensional integrable hamiltonian systems with simple singular points (topological aspects) by Lerman, Lev M., Umanskiy, Ya. L. fromTranslations of mathematical monographs 0 Type: Book