@article{SD_1961-1962__15_1_A8_0, author = {Desq, Roger}, title = {\'Etude de quelques relations d'\'equivalence d\'efinies dans un demi-groupe {D}}, journal = {S\'eminaire Albert Ch\^atelet et Paul Dubreil}, note = {talk:11}, pages = {1--13}, year = {1961-1962}, publisher = {Secr\'etariat math\'ematique}, volume = {15}, number = {1}, zbl = {0118.03003}, language = {fr}, url = {https://www.numdam.org/item/SD_1961-1962__15_1_A8_0/} }