共 26 条
[2]
Atthey D, 1974, J I MATHS APPLICS, V13, P353
[3]
CAGINALP G, 1985, ELLIPTIC PROBLEMS IN
[4]
CAGINALP G, IN PRESS ARCH RAT ME
[5]
Crank J., 1972, J I MATH APPL, V10, P19
[7]
DONNELLY JDP, 1979, J I MATH APPL, V24, P425
[8]
FASANO A, 1980, Q APPL MATH, V38, P439