@article{ZNSL_1970_18_a13,
     author = {L. N. Dovbysh},
     title = {On the expansion on nonminimal sequences},
     journal = {Zapiski Nauchnykh Seminarov POMI},
     pages = {177--190},
     year = {1970},
     volume = {18},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/ZNSL_1970_18_a13/}
}