Hladka O.М. 2019. Mathematical modeling of nonlinear displacement processes in oil LEF-layer by methods of complex analysis and summary representations. Geofizicheskiy Zhurnal. 41, 2 (Apr. 2019), 156–170. DOI:https://doi.org/10.24028/gzh.0203-3100.v41i2.2019.164465.