共 50 条
- [44] OSCILLATIONS OF 2ND-ORDER NEUTRAL DIFFERENTIAL-EQUATIONS CANADIAN MATHEMATICAL BULLETIN-BULLETIN CANADIEN DE MATHEMATIQUES, 1993, 36 (04): : 485 - 496
- [47] CONVERGENCE OF SOLUTIONS OF SOME THIRD ORDER SYSTEMS OF NON-LINEAR ORDINARY DIFFERENTIAL EQUATIONS ANALELE STIINTIFICE ALE UNIVERSITATII AL I CUZA DIN IASI-SERIE NOUA-MATEMATICA, 2009, 55 (01): : 11 - 20