@article{PFMT_2014_3_a11,
     author = {S. F. Kamornikov},
     title = {One example of hyperradical formation},
     journal = {Problemy fiziki, matematiki i tehniki},
     pages = {61--64},
     publisher = {mathdoc},
     number = {3},
     year = {2014},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/PFMT_2014_3_a11/}
}