Galaktionov, Victor A. Geometric Sturmian theory of nonlinear parabolic equations and applications / Victor A. Galaktionov - Boca Raton, Fla.: Chapman & Hall/CRC, 2004 - xxii, 360 p.: ill.; 24 cm. Includes bibliographical references (p. [337]-356) and index ISBN: 1584884622 Subjects--Topical Terms: Differential equations, Parabolic