Lopushansky, A.O., H.P. Lopushanska, and O.V. Pasichnyk. 2012. “Two Definitions of the Generalized Cauchy Problem for Semi-Linear Diffusion Equation With Fractional Derivative With Respect to Time”. Carpathian Mathematical Publications 4 (1):72-82. https://journals.pnu.edu.ua/index.php/cmp/article/view/2408.