TY - JOUR AU - V. A. Il'in AU - A. A. Kuleshov TI - Necessary and sufficient conditions for a~generalized solution to the initial-boundary value problem for the wave equation to belong to $W^1_p$ with~$p\geq1$ JO - Informatics and Automation PY - 2013 SP - 115 EP - 120 VL - 283 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/TRSPY_2013_283_a7/ LA - ru ID - TRSPY_2013_283_a7 ER -