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- [1] ASYMPTOTIC INTEGRATION OF WEAKLY NONLINEAR PARTIAL-DIFFERENTIAL EQUATIONS DOKLADY AKADEMII NAUK SSSR, 1977, 237 (03): : 525 - 528
- [4] DIFFERENTIAL OPERATORS FOR CERTAIN PARTIAL-DIFFERENTIAL EQUATIONS NOTICES OF THE AMERICAN MATHEMATICAL SOCIETY, 1975, 22 (06): : A626 - A627
- [5] RANGES OF CERTAIN WEAKLY NON-LINEAR ELLIPTIC PARTIAL-DIFFERENTIAL EQUATIONS JOURNAL DE MATHEMATIQUES PURES ET APPLIQUEES, 1978, 57 (04): : 351 - 366
- [8] POLYNOMIAL SOLUTIONS OF CERTAIN PARTIAL-DIFFERENTIAL EQUATIONS MONATSHEFTE FUR MATHEMATIK, 1976, 81 (02): : 109 - 117