@article{DAN_1994_338_2_a13,
     author = {S. A. Arsen'ev and L. N. Rykunov and N. K. Shelkovnikov},
     title = {Generation of second harmonic by waves in elastico-viscous geomediums},
     journal = {Doklady Akademii Nauk},
     pages = {225--228},
     year = {1994},
     volume = {338},
     number = {2},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1994_338_2_a13/}
}