@article{ZVMMF_1993_33_1_a11, author = {V. V. Varlamov}, title = {Energy estimates for the integro-differential equation describing acoustic waves in a medium with a {\textquotedblleft}memory{\textquotedblright}}, journal = {\v{Z}urnal vy\v{c}islitelʹnoj matematiki i matemati\v{c}eskoj fiziki}, pages = {146--150}, publisher = {mathdoc}, volume = {33}, number = {1}, year = {1993}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/ZVMMF_1993_33_1_a11/} }