Lefschetz, Solomon, 1884-1972.
Differential equations: geometric theory. - 2d ed. - New York : Interscience Publishers, 1963. - x, 390 p. : ill. ; 24 cm. - Pure and applied mathematics, v. 6 .
62021884
Differential equations.
Topology.
QA371 / .L36 1963
517.38 / LED
Differential equations: geometric theory. - 2d ed. - New York : Interscience Publishers, 1963. - x, 390 p. : ill. ; 24 cm. - Pure and applied mathematics, v. 6 .
62021884
Differential equations.
Topology.
QA371 / .L36 1963
517.38 / LED