Differential equations
Lefschetz, Solomon
Differential equations geometric theory [Text] Lefschetz, Solomon - 2nd ed. - New York Dover 1977 - 390 p. 21 cm.
Analysis
515.35 / LEF
Differential equations geometric theory [Text] Lefschetz, Solomon - 2nd ed. - New York Dover 1977 - 390 p. 21 cm.
Analysis
515.35 / LEF