Geodesic
Positive equivalences
Algebra i logika, Tome 10 (1971) no. 6, pp. 620-650 
Yu. L. Ershov. Positive equivalences. Algebra i logika, Tome 10 (1971) no. 6, pp. 620-650. http://geodesic.mathdoc.fr/item/AL_1971_10_6_a1/
@article{AL_1971_10_6_a1,
     author = {Yu. L. Ershov},
     title = {Positive equivalences},
     journal = {Algebra i logika},
     pages = {620--650},
     year = {1971},
     volume = {10},
     number = {6},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/AL_1971_10_6_a1/}
}
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IS  - 6
UR  - http://geodesic.mathdoc.fr/item/AL_1971_10_6_a1/
LA  - ru
ID  - AL_1971_10_6_a1
ER  - 
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%U http://geodesic.mathdoc.fr/item/AL_1971_10_6_a1/
%G ru
%F AL_1971_10_6_a1

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