@article{DAN_1970_195_5_a19,
     author = {N. B. Filonenko and L. I. Mishina},
     title = {Ageing of boron nitride crystals as investigated by the chemical etching method},
     journal = {Doklady Akademii Nauk},
     pages = {1088--1089},
     publisher = {mathdoc},
     volume = {195},
     number = {5},
     year = {1970},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1970_195_5_a19/}
}