ASYMPTOTIC THEORY OF SECOND ORDER DIFFERENTIAL EQUATIONS WITH TWO SIMPLE TURNING POINTS
1958 ◽
Vol 2
(1)
◽
pp. 129-150
◽
1983 ◽
pp. 110-122
◽
1977 ◽
Vol 8
(1)
◽
pp. 127-154
◽
1976 ◽
Vol 80B
(4)
◽
pp. 437
◽
Keyword(s):
1977 ◽
Vol 8
(4)
◽
pp. 673-700
◽
1994 ◽
Vol 165
(1)
◽
pp. 205-229
◽
2011 ◽
Vol 57
(2)
◽
pp. 409-416
2015 ◽
Vol 36
(7)
◽
pp. 930-941