Korzyuk, V. I., S. V. Lemeshevsky, P. P. Matus, and V. N. Shalima. 1999. “Conjugation Problem about Jointly Separate Flow of Viscoelastic and Viscous Fluids in the Plane Duct”. Mathematical Modelling and Analysis 4 (1):114-23. https://doi.org/10.3846/13926292.1999.9637116.