Petrovski, I. G.
Ordinary differential equations - 1st ed. - New Jersey Prentice-Hall 1966 - x, 232 p. 22 cm.
Includes bibliographies
Differential equations
517.383 / PET/1966
Ordinary differential equations - 1st ed. - New Jersey Prentice-Hall 1966 - x, 232 p. 22 cm.
Includes bibliographies
Differential equations
517.383 / PET/1966