%0 Journal Article %A M. P. Volarovich %A E. I. Bayuk %A T. M. Salekhli %T The rates of ultra-sonic longitudinal waves in oil-and gas-bearing reservoirs of Azerbaijan under high pressure conditions %J Doklady Akademii Nauk %D 1965 %P 1131-1133 %V 163 %N 5 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1965_163_5_a21/ %G ru %F DAN_1965_163_5_a21