References
- Monotone iterative technique for Nonlinear diferential equations G.S.Laddle;V.Lakshmikantham;A.S.Vatala
- Theory of impulsive differential equations V.Lakshmikantham;D.D.Bainov;P.S.Simeonov
- Applicable Analysis v.51 The method of upper and lower solutions and monotone technique for impulsive diferential equations with variable moments V.Laks;N.S.Papageorgiou;J.Vasundhara Devi
- Nonlinear World v.2 Monotone iterative technique for impulsive diferential equations with variable times S.K.Kaul
- Nonlinear Times and Digest v.2 The periodic boundary value problem for impulsive diferential equations with variable times S.K.Kaul
- Nonl. Anal. Appli. v.22 no.10 Extremal solutions, comparison principle and stability criteria for impulsive diferential equations with variable times S.K.Kaul;V.Lakshmikantham;S.Leela
- Nonl. Anal. v.22 no.4 comparison principle for impulsive diferential equations with variable times and stability theory V.Lakshmikantham;S.Leela;S.Kaul