TaranetsR. M., and ShishkovA. E. “Singular Cauchy Problem for the Equation of Flow of Thin Viscous Films With Nonlinear Convection”. Ukrains’kyi Matematychnyi Zhurnal, Vol. 58, no. 2, Feb. 2006, pp. 250–271, https://umj.imath.kiev.ua/index.php/umj/article/view/3450.