SINGULAR PERTURBATIONS OF A HIGHER-ORDER SCALAR NONLINEAR BOUNDARY VALUE PROBLEM
1994 ◽
Vol 22
(8)
◽
pp. 1051-1056
◽
2018 ◽
Vol 70
(3)
◽
pp. 410-421
◽
1978 ◽
Vol 78
(2)
◽
pp. 375-383
◽
2017 ◽
Vol 42
◽
pp. 723-733
1991 ◽
Vol 162
(2)
◽
pp. 482-493