@article{DAN_1989_306_1_a20,
     author = {O. A. Evdokimova and E. L. Belokoneva and V. S. Urusov},
     title = {Localization of impurities in emerald, deduced
},
     journal = {Doklady Akademii Nauk},
     pages = {95--99},
     publisher = {mathdoc},
     volume = {306},
     number = {1},
     year = {1989},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1989_306_1_a20/}
}