@article{VMUMM_2017_6_a8,
     author = {S. P. Mishchenko and N. P. Panov},
     title = {Sturmian words and uncountable set of almost nilpotent varieties of quadratic growth},
     journal = {Vestnik Moskovskogo universiteta. Matematika, mehanika},
     pages = {55--59},
     publisher = {mathdoc},
     number = {6},
     year = {2017},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/VMUMM_2017_6_a8/}
}