@article{DAN_1978_239_4_a22,
     author = {N. V. Belov and B. A. Maksimov and Yu. Z. Nozik and L. A. Muradyan},
     title = {Refinement of the crystal structure of dioptase,
},
     journal = {Doklady Akademii Nauk},
     pages = {842--845},
     publisher = {mathdoc},
     volume = {239},
     number = {4},
     year = {1978},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1978_239_4_a22/}
}