@article{1183528631, author = {Kendall, David G.}, title = {Delphic semigroups}, journal = {Bull. Amer. Math. Soc.}, volume = {73}, number = {6}, year = {1967}, pages = { 120-121}, language = {en}, url = {http://dml.mathdoc.fr/item/1183528631} }
Kendall, David G. Delphic semigroups. Bull. Amer. Math. Soc., Tome 73 (1967) no. 6, pp. 120-121. http://gdmltest.u-ga.fr/item/1183528631/