Singular perturbation problems for systems of partial differential equations of elliptic type
1979 ◽
Vol 71
(1)
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pp. 18-35
◽
2005 ◽
Vol 14
(4)
◽
pp. 593-608
◽
1976 ◽
pp. 249-258
◽
1966 ◽
Vol 23
(1)
◽
pp. 26-86
◽
1976 ◽
Vol 6
(4)
◽
pp. 761-766
◽
1973 ◽
Vol 49
(6)
◽
pp. 385-389
◽
1990 ◽
Vol 11
(7)
◽
pp. 637-650
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