共 50 条
- [13] SYMMETRY PROPERTIES OF SOLUTIONS OF SOME 4TH-ORDER ORDINARY DIFFERENTIAL-EQUATIONS BULLETIN DES SCIENCES MATHEMATIQUES, 1993, 117 (04): : 441 - 462
- [15] 1ST BOUNDARY-VALUE PROBLEM FOR 4TH-ORDER INTEGRO-DIFFERENTIAL EQUATIONS DEGENERATING AT A PART OF BOUNDARY VESTNIK MOSKOVSKOGO UNIVERSITETA SERIYA 1 MATEMATIKA MEKHANIKA, 1975, (06): : 36 - 45