@article{VMUMM_2017_4_a10,
     author = {S. P. Mishchenko},
     title = {Infinite periodic words and almost nilpotent varieties},
     journal = {Vestnik Moskovskogo universiteta. Matematika, mehanika},
     pages = {62--66},
     year = {2017},
     number = {4},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/VMUMM_2017_4_a10/}
}