@article{DAN_1981_260_5_a27,
     author = {Ya. P. Yarmoluk and Yu. N. Grin' and R. E. Gladyshevskii},
     title = {Crystal structure of the compounds $\mathrm{R}_6\mathrm{Ga}_{21}\mathrm{Co}_7$ 
},
     journal = {Doklady Akademii Nauk},
     pages = {1139--1142},
     publisher = {mathdoc},
     volume = {260},
     number = {5},
     year = {1981},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1981_260_5_a27/}
}