@article{DAN_1996_348_3_a10, author = {A. S. Belyakov and V. S. Lavrov and A. V. Nikolaev and L. L. Khudzinskii}, title = {On variations background underground sound}, journal = {Doklady Akademii Nauk}, pages = {383--386}, year = {1996}, volume = {348}, number = {3}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DAN_1996_348_3_a10/} }