@article{SD_1958-1959__12_2_A1_0,
     author = {Lefebvre, Pierre},
     title = {Sur la structure des demi-groupes, d'apr\`es les travaux de {J.} {A.} {Green} et {W.} {D.} {Munn}},
     journal = {S\'eminaire Dubreil. Alg\`ebre et th\'eorie des nombres},
     note = {talk:13},
     pages = {1--24},
     publisher = {Secr\'etariat math\'ematique},
     volume = {12},
     number = {2},
     year = {1958-1959},
     language = {fr},
     url = {http://www.numdam.org/item/SD_1958-1959__12_2_A1_0/}
}