Bellman, Richard Ernest, 1920- Stability theory of differential equations/ Richard E. Bellman. - New York: McGraw-Hill, 1953. - 166 p.: 24 cm. - International series in pure and applied mathematics; . LCCN: 53006037 Nat. Bib. No.: GB54-681 Subjects--Topical Terms: Differential equations. Dewey Class. No.: 515.35 / B445s