Paris, R. B. Asymptotics of high order differential equations/ R.B. Paris & A.D. Wood. - Harlow, Essex, England: New York: Longman Scientific & Technical, Wiley, 1986. - 344 p.: ill.; 25 cm. - Pitman Research Notes in Mathematics Series; 129 . Includes index. Bibliography: p. 333-340. ISBN: 0470203757 (Wiley : pbk.) 0582994551 (pbk) : LCCN: 85003431 //r88 Nat. Bib. No.: GB85-17302 Subjects--Topical Terms: Differential equations---Asymptotic theory. Dewey Class. No.: 515.35 / P232a