@article{DIA_1982__7__A4_0,
     author = {Guitart, R. and Lair, C.},
     title = {Limites et co-limites pour repr\'esenter les formules},
     journal = {Diagrammes},
     note = {talk:4},
     pages = {GL1--GL24},
     publisher = {Universit\'e Paris 7, Unit\'e d'enseignement et de recherche de math\'ematiques},
     volume = {7},
     year = {1982},
     mrnumber = {685055},
     zbl = {0535.03013},
     language = {fr},
     url = {http://archive.numdam.org/item/DIA_1982__7__A4_0/}
}