참고문헌
- Fuzzy Sets and Systems v.24 Fuzzy differential equations O.Kaleva
- J. Math. Anal. Appl. v.114 Fuuzy random variables M. L. Puri;D. A. Ralescu
- Chin. Ann. of Math v.2 no.18 B The existence and uniqueness and stability of almost periodic solutions for functional differential equations with infinite delays W. Quanyi
- J. of Diff. Equa. v.41 Almost periodic solutions for delay-differential equations G. Seifert
- The Mathematical Society of Japan Stability Theory by Liapunov's Second Method T. Yoshizawa