@article{SD_1970-1971__24_1_A9_0,
     author = {Petrich, Mario},
     title = {L'enveloppe de translations d'un demi-treillis de groupes},
     journal = {S\'eminaire Albert Ch\^atelet et Paul Dubreil},
     note = {talk:11},
     pages = {1--16},
     year = {1970-1971},
     publisher = {Secr\'etariat math\'ematique},
     volume = {24},
     number = {1},
     zbl = {0256.20077},
     language = {fr},
     url = {https://www.numdam.org/item/SD_1970-1971__24_1_A9_0/}
}