A note on angular semigroups.
Yuan, J.
Semigroup forum, Tome 20 (1980), p. 261-266 / Harvested from Göttinger Digitalisierungszentrum
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Publié le : 1980-01-01
EUDML-ID : urn:eudml:doc:134387 
@article{GDZPPN001253832,
     title = {A note on angular semigroups.},
     journal = {Semigroup forum},
     volume = {20},
     year = {1980},
     pages = {261-266},
     zbl = {0428.43002},
     url = {http://dml.mathdoc.fr/item/GDZPPN001253832}
}

Yuan, J. A note on angular semigroups.. Semigroup forum, Tome 20 (1980) pp. 261-266. http://gdmltest.u-ga.fr/item/GDZPPN001253832/