Idempotent Topological Groupoids with Non-Empty Center.
Sigmon, Kermit
Mathematische Zeitschrift, Tome 129 (1972), p. 70-78 / Harvested from Göttinger Digitalisierungszentrum
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Publié le : 1972-01-01
EUDML-ID : urn:eudml:doc:171690 
@article{GDZPPN002410478,
     title = {Idempotent Topological Groupoids with Non-Empty Center.},
     journal = {Mathematische Zeitschrift},
     volume = {129},
     year = {1972},
     pages = {70-78},
     zbl = {0225.55008},
     url = {http://dml.mathdoc.fr/item/GDZPPN002410478}
}

Sigmon, Kermit. Idempotent Topological Groupoids with Non-Empty Center.. Mathematische Zeitschrift, Tome 129 (1972) pp. 70-78. http://gdmltest.u-ga.fr/item/GDZPPN002410478/