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El-Sayed, W. G. .; Abd El-Rahman, R. O.; Abd El-Salam, S. A.; El Shahawy, A. A. . On the Existence of a Bounded Variation Solution of a Fractional Integral Equation in L1[0, T] Due to the Spread of COVID 19.
JAM
2022
,
21
, 107-115.