. "DISCRETE ADOMIAN DECOMPOSITION METHOD FOR SOLVING A CLASS OF NONLINEAR FREDHOLM VOLTERRA INTEGRAL EQUATION IN TWO DIMENSIONS I. L. EL-KALLA, R. A. ABD-ELMONEM, A. M. GOMAA", Journal of Fractional Calculus and Applications, 3, 2, 2013, 1-9. doi: 10.21608/jfca.2013.289952