bibitem{TA} T. Allahviranloo, {it Difference methods for fuzzy partial differential equations}, Computational Methods in Appliead
Mathematics, {bf 2}textbf{(3)} (2002), 233-242.
bibitem{TAAS}T. Allahviranloo, N. Ahmadi, E. Ahmadi and K. Shamsolkotabi, {it Block jacobi two stage method for fuzzy system of
linear equations}, Appl. Math. and Com., {bf 175} (2006), 1217-1228.
bibitem{BG}B. Bede and S. Gal, {it Generalizations of the
differentiability of fuzzy number valued functions with
applications to fuzzy differential equations}, Fuzzy Sets and Systems,
{bf 151} (2005), 581-99.
bibitem{JBTHF2} J. J. Buckley and T. Feuring, {it Introduction to fuzzy
partial differential equations}, Fuzzy Sets and Systems, {bf 105} (1999), 241-248.
bibitem{BUFA} R. L. Burden and J. D. Faires, {it Numerical
analysis}, Brooks Cole, 2000.
bibitem{YH}Y. Chalco-Cano and H. Roman-Flores, {it On new solutions of
fuzzy differential equations}, Chaos Solutions and Fractals, {bf 38}textbf{(1)} (2008), 112-119.
bibitem{CHZA} S. L. Chang and L. A. Zadeh, {it On fuzzy mapping and control}, IEEE Trans Systems Man Cybernet, {bf 2} (1972), 30-34.
bibitem{DUPR} D. Dubois and H. Prade, {it Towards fuzzy differential calculus: Part 3}, Differentiation Fuzzy Sets and Systems, {bf 8} (1982), 225-233.
bibitem{GOVO} R. Goetschel and W. Voxman, {it Elementary fuzzy calculus},
Fuzzy Sets and Systems, {bf 18} (1986), 31-43.
bibitem{KA1}O. Kaleva, {it Fuzzy differential equations}, Fuzzy Sets and Systems,
{bf 24} (1987), 301-317.
bibitem{KA2}O. Kaleva, {it The cuachy problem for fuzzy differential
equations}, Fuzzy Sets and Systems, {bf 35} (1990), 389-396.
bibitem{MFAK}M. Ma, M. Friedman and A. Kandel, {it Numerical solutions
of fuzzy differential equatios}, Fuzzy Sets and Systems, {bf 105} (1999), 133-138.
bibitem{PR}M. Puri and D. Ralescu, {it Differential and fuzzy functions}, J. Math. Anal. Appl., {bf 91} (1983), 552-558.
bibitem{PURA} M. L. Puri and D. A. Ralescu, {it Differentials of fuzzy functions}, J. Math. Anal. Appl., {bf 91} (1983), 321-325.
bibitem{SE} S. Seikkala, {it On the fuzzy initial value problem}, Fuzzy Sets and Systems,
{bf 24} (1987), 319-330.