Structures quotient.
Ehresmann, Charles
Commentarii mathematici Helvetici, Tome 38 (1963), p. 219-283 / Harvested from Göttinger Digitalisierungszentrum
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Publié le : 1963-01-01
EUDML-ID : urn:eudml:doc:139275 
@article{GDZPPN002058286,
     title = {Structures quotient.},
     journal = {Commentarii mathematici Helvetici},
     volume = {38},
     year = {1963},
     pages = {219-283},
     url = {http://dml.mathdoc.fr/item/GDZPPN002058286}
}

Ehresmann, Charles. Structures quotient.. Commentarii mathematici Helvetici, Tome 38 (1963) pp. 219-283. http://gdmltest.u-ga.fr/item/GDZPPN002058286/