%0 Journal Article %A Yu. V. Sheretov %T Superposition principle for solutions of quasi-hydrodynamic system %J Vestnik Tverskogo gosudarstvennogo universiteta. Seriâ Prikladnaâ matematika %D 2022 %P 60-73 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/VTPMK_2022_2_a4/ %G ru %F VTPMK_2022_2_a4