共 50 条
- [31] 2ND-ORDER DIFFERENTIAL-EQUATIONS WITH VARIABLE-COEFFICIENTS - ANALYTICAL SOLUTIONS NUOVO CIMENTO DELLA SOCIETA ITALIANA DI FISICA B-GENERAL PHYSICS RELATIVITY ASTRONOMY AND MATHEMATICAL PHYSICS AND METHODS, 1987, 99 (01): : 53 - 60
- [32] ASYMPTOTICS OF FUNDAMENTAL-SOLUTIONS OF 2ND-ORDER DIVERGENCE DIFFERENTIAL-EQUATIONS MATHEMATICS OF THE USSR-SBORNIK, 1980, 113 (02): : 249 - 267
- [37] OSCILLATION OF NONLINEAR DIFFERENTIAL-EQUATIONS OF 2ND-ORDER PUBLICATIONES MATHEMATICAE-DEBRECEN, 1992, 40 (1-2): : 143 - 153