共 50 条
- [1] BOUNDEDNESS OF SOLUTIONS OF 2ND-ORDER DIFFERENTIAL-EQUATIONS AND 2ND-ORDER DIFFERENTIAL-EQUATIONS WITH DELAY CHINESE SCIENCE BULLETIN, 1989, 34 (02): : 171 - 172
- [3] GEOMETRY OF 2ND-ORDER DIFFERENTIAL-EQUATIONS ANNALES DE L INSTITUT HENRI POINCARE-PHYSIQUE THEORIQUE, 1986, 45 (01): : 1 - 28
- [4] ON OSCILLATION OF 2ND-ORDER DIFFERENTIAL-EQUATIONS INDIAN JOURNAL OF PURE & APPLIED MATHEMATICS, 1981, 12 (12): : 1425 - 1428
- [5] PERIODICAL SOLUTIONS OF THE SYSTEM OF 2ND-ORDER DIFFERENTIAL-EQUATIONS VESTNIK LENINGRADSKOGO UNIVERSITETA SERIYA MATEMATIKA MEKHANIKA ASTRONOMIYA, 1984, (02): : 98 - 101
- [7] OSCILLATION OF 2ND-ORDER NEUTRAL DIFFERENTIAL-EQUATIONS CHINESE SCIENCE BULLETIN, 1990, 35 (09): : 712 - 718
- [8] OSCILLATIONS OF 2ND-ORDER NEUTRAL DIFFERENTIAL-EQUATIONS CANADIAN MATHEMATICAL BULLETIN-BULLETIN CANADIEN DE MATHEMATIQUES, 1993, 36 (04): : 485 - 496