Geodesic
Hereditarily effective operations
Algebra i logika, Tome 15 (1976) no. 6, pp. 642-654.

Voir la notice de l'article provenant de la source Math-Net.Ru

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     author = {Yu. L. Ershov},
     title = {Hereditarily effective operations},
     journal = {Algebra i logika},
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     number = {6},
     year = {1976},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/AL_1976_15_6_a3/}
}
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Yu. L. Ershov. Hereditarily effective operations. Algebra i logika, Tome 15 (1976) no. 6, pp. 642-654. http://geodesic.mathdoc.fr/item/AL_1976_15_6_a3/