Elementary differential equations - Kreider, Donald L.; Kuller, Robert Garlin, 1926-; Ostberg, Donald R. (Reading, Mass. : Addison-Wesley Publishing, 1968)
Edition of 1976 published under title: Elementary differential equat ions with linear algebra, by R.L. Finney, D.R. Ostberg, and R.G. Kuller .
Bibliography: p. 447-448.
Keywords: Differential equations