Hyperhypersimple $m$-degrees
Algebra i logika, Tome 8 (1969) no. 5, pp. 523-552
Voir la notice de l'article provenant de la source Math-Net.Ru
@article{AL_1969_8_5_a1,
author = {Yu. L. Ershov},
title = {Hyperhypersimple $m$-degrees},
journal = {Algebra i logika},
pages = {523--552},
publisher = {mathdoc},
volume = {8},
number = {5},
year = {1969},
language = {ru},
url = {http://geodesic.mathdoc.fr/item/AL_1969_8_5_a1/}
}
Yu. L. Ershov. Hyperhypersimple $m$-degrees. Algebra i logika, Tome 8 (1969) no. 5, pp. 523-552. http://geodesic.mathdoc.fr/item/AL_1969_8_5_a1/