@article{DAN_1968_182_4_a21,
     author = {D. P. Shashkin and M. A. Simonov and N. V. Belov},
     title = {The crystal structure of a new natural borate $\mathrm{Ca}[\mathrm{B}_2\mathrm{O}_2(\mathrm{OH})_4]$},
     journal = {Doklady Akademii Nauk},
     pages = {821--824},
     publisher = {mathdoc},
     volume = {182},
     number = {4},
     year = {1968},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1968_182_4_a21/}
}