Gol’dman, N. “An Inverse Problem With Final Overdetermination for a Quasilinear Parabolic Equation With an Unknown Right-Hand Side”. Numerical Methods and Programming (Vychislitel’nye Metody I Programmirovanie), vol. 4, no. 4, Mar. 2003, pp. 155-66, https://en.num-meth.ru/index.php/journal/article/view/84.