共 50 条
- [6] Existence of three periodic solutions for a nonlinear first order functional differential equation [J]. JOURNAL OF THE FRANKLIN INSTITUTE-ENGINEERING AND APPLIED MATHEMATICS, 2009, 346 (08): : 818 - 829
- [8] CONVERGENCE OF SOLUTIONS OF NONLINEAR FIRST-ORDER DELAY DIFFERENTIAL EQUATION [J]. NOTICES OF THE AMERICAN MATHEMATICAL SOCIETY, 1974, 21 (01): : A141 - A141
- [10] APPROXIMATE SOLUTIONS FOR A FIRST-ORDER, NONLINEAR ORDINARY DIFFERENTIAL EQUATION [J]. AMERICAN MATHEMATICAL MONTHLY, 1961, 68 (08): : 774 - +