@article{SD_1964-1965__18_1_A1_0,
     author = {Grillet, Pierre-Antoine},
     title = {Sur les extensions id\'eales d'un demi-groupe},
     journal = {S\'eminaire Dubreil. Alg\`ebre et th\'eorie des nombres},
     note = {talk:1},
     pages = {1--27},
     publisher = {Secr\'etariat math\'ematique},
     volume = {18},
     number = {1},
     year = {1964-1965},
     zbl = {0218.20054},
     language = {fr},
     url = {http://www.numdam.org/item/SD_1964-1965__18_1_A1_0/}
}