@article{DAN_1981_259_4_a4,
     author = {S. S. Grigoryan and Yu. Z. Saakyan and A. K. Tsaturyan},
     title = {On the origin of ``infinite'' {Korotkov} tones},
     journal = {Doklady Akademii Nauk},
     pages = {793--795},
     publisher = {mathdoc},
     volume = {259},
     number = {4},
     year = {1981},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1981_259_4_a4/}
}