L. M. Lerman and Ya. L. Umanskiy

titleISBN-13
(ISBN-10)
year of publication
Four-Dimensional Integrable Hamiltonian Systems with Simple Singular Points978-O-8218-O375-2
(O-8218-O375-1)
1998

L a · L.M. · M.A. · M.-L. · M. Lerman

L. M. Levin