“On Analytic Solutions of the Cauchy Problem for Partial Differential-Partial Equations With Nonlinear Deviations of Arguments”. Neliniini Kolyvannya 2, no. 3 (September 29, 1999): 364–373. Accessed January 22, 2026. https://twinhead.imath.kiev.ua/index.php/nosc/article/view/71.