@article{DAN_1989_307_2_a18,
     author = {G. P. Zinov'eva and I. I. Nesterov and E. L. Zhdakhin and \`E. \`E. Artma and Yu. V. Gorbunov},
     title = {Investigation of rock deformation features by a nonlinear acoustic parameter},
     journal = {Doklady Akademii Nauk},
     pages = {337--341},
     publisher = {mathdoc},
     volume = {307},
     number = {2},
     year = {1989},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1989_307_2_a18/}
}