The earliest semigroup paper?
Lawson, J.D.
Semigroup forum, Tome 53 (1996), p. 55-60 / Harvested from Göttinger Digitalisierungszentrum
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Publié le : 1996-01-01
EUDML-ID : urn:eudml:doc:135433 
@article{GDZPPN001264605,
     title = {The earliest semigroup paper?},
     journal = {Semigroup forum},
     volume = {53},
     year = {1996},
     pages = {55-60},
     zbl = {0844.22001},
     url = {http://dml.mathdoc.fr/item/GDZPPN001264605}
}

Lawson, J.D. The earliest semigroup paper?. Semigroup forum, Tome 53 (1996) pp. 55-60. http://gdmltest.u-ga.fr/item/GDZPPN001264605/