@article{DAN_1978_241_4_a20,
     author = {P. V. Pavlov and N. V. Belov},
     title = {The mechanism of $\alpha$-, $\beta$-transition of $\mathrm{Si}_3\mathrm{N}_4$ during the annealing},
     journal = {Doklady Akademii Nauk},
     pages = {825--827},
     publisher = {mathdoc},
     volume = {241},
     number = {4},
     year = {1978},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1978_241_4_a20/}
}