GuliyevA. F., and IsmayilovaS. H. “Mixed Boundary-Value Problem for Linear Second-Order Nondivergent Parabolic Equations With Discontinuous Coefficients”. Ukrains’kyi Matematychnyi Zhurnal 66, no. 11 (November 25, 2014): 1443-1462. Accessed July 27, 2024. https://umj.imath.kiev.ua/index.php/umj/article/view/2237.