@article{SJIM_2014_17_1_a3,
     author = {R. M. Garipov and M. S. Kotel'nikova},
     title = {$4$-crystals and quasicrystals},
     journal = {Sibirskij \v{z}urnal industrialʹnoj matematiki},
     pages = {28--35},
     publisher = {mathdoc},
     volume = {17},
     number = {1},
     year = {2014},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/SJIM_2014_17_1_a3/}
}