@article{DAN_1981_259_5_a16,
     author = {B. N. Litvin and G. I. Dorokhova and O. S. Filipenko},
     title = {Production, structure, and properties of single crystals of $\mathrm{K},\mathrm{Nd}$-tetraphosphates},
     journal = {Doklady Akademii Nauk},
     pages = {1102--1105},
     publisher = {mathdoc},
     volume = {259},
     number = {5},
     year = {1981},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1981_259_5_a16/}
}