@article{ZVMMF_1975_15_2_a13,
     author = {Yu. N. Karamzin},
     title = {Difference schemes for the computation of three-frequency interactions of quasimonochromatic waves with allowance made for diffraction},
     journal = {\v{Z}urnal vy\v{c}islitelʹnoj matematiki i matemati\v{c}eskoj fiziki},
     pages = {429--435},
     year = {1975},
     volume = {15},
     number = {2},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/ZVMMF_1975_15_2_a13/}
}