V.P. Ovchinnikov, O.V. Rozhkova, P.V. Ovchinnikov and O.N. Shemelina 2019. High Viscosity Oil Development Technology. International Journal of Petroleum Technology. 6, (Dec. 2019), 35–40. DOI:https://doi.org/10.15377/2409-787X.2019.06.4.