Degtyarev, S. P. (2006). Influence of the inhomogeneity of porous media on the instantaneous compactification of the support of solution of the filtration problem. Ukrains’kyi Matematychnyi Zhurnal, 58(8), 1035–1044. Retrieved from https://umj.imath.kiev.ua/index.php/umj/article/view/3512