共 50 条
- [37] MULTIPLE SOLUTIONS FOR NONLINEAR ELLIPTIC BOUNDARY-VALUE PROBLEMS NOTICES OF THE AMERICAN MATHEMATICAL SOCIETY, 1972, 19 (01): : A138 - &
- [38] Boundary Value Problems for Fourth-Order Sobolev Type Equations JOURNAL OF SIBERIAN FEDERAL UNIVERSITY-MATHEMATICS & PHYSICS, 2021, 14 (04): : 425 - 432