@article{DAN_1971_200_2_a0,
     author = {R. V. Ambartzumian},
     title = {On random plane mosaics},
     journal = {Doklady Akademii Nauk},
     pages = {255--258},
     publisher = {mathdoc},
     volume = {200},
     number = {2},
     year = {1971},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1971_200_2_a0/}
}