The upper semilattice of numerations of a finite set
Algebra i logika, Tome 14 (1975) no. 3, pp. 258-284
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@article{AL_1975_14_3_a1,
author = {Yu. L. Ershov},
title = {The upper semilattice of numerations of a finite set},
journal = {Algebra i logika},
pages = {258--284},
publisher = {mathdoc},
volume = {14},
number = {3},
year = {1975},
language = {ru},
url = {http://geodesic.mathdoc.fr/item/AL_1975_14_3_a1/}
}
Yu. L. Ershov. The upper semilattice of numerations of a finite set. Algebra i logika, Tome 14 (1975) no. 3, pp. 258-284. http://geodesic.mathdoc.fr/item/AL_1975_14_3_a1/