@article{SD_1971-1972__25_1_A14_0,
     author = {Boasson, Luc},
     title = {Familles de langages},
     journal = {S\'eminaire Albert Ch\^atelet et Paul Dubreil},
     note = {talk:15},
     pages = {1--5},
     year = {1971-1972},
     publisher = {Secr\'etariat math\'ematique},
     volume = {25},
     number = {1},
     mrnumber = {395281},
     zbl = {0321.68056},
     language = {fr},
     url = {https://www.numdam.org/item/SD_1971-1972__25_1_A14_0/}
}