TY - JOUR AU - L. V. Gargyants AU - O. S. Rozanova AU - M. K. Turzynsky TI - The Riemann problem for the main model cases of the Euler---Poisson equations JO - Contemporary Mathematics. Fundamental Directions PY - 2024 SP - 38 EP - 52 VL - 70 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/CMFD_2024_70_1_a3/ LA - ru ID - CMFD_2024_70_1_a3 ER -