Index sets of classes of hyperhypersimple sets
Algebra i logika, Tome 29 (1990) no. 2, pp. 220-240
@article{AL_1990_29_2_a7,
author = {V. L. Selivanov},
title = {Index sets of classes of hyperhypersimple sets},
journal = {Algebra i logika},
pages = {220--240},
year = {1990},
volume = {29},
number = {2},
language = {ru},
url = {http://geodesic.mathdoc.fr/item/AL_1990_29_2_a7/}
}
V. L. Selivanov. Index sets of classes of hyperhypersimple sets. Algebra i logika, Tome 29 (1990) no. 2, pp. 220-240. http://geodesic.mathdoc.fr/item/AL_1990_29_2_a7/