@article{DIA_1989__21__A3_0,
     author = {L\'eger, C.},
     title = {Le groupe des m\'etamorphoses d'une cat\'egorie, un exemple},
     journal = {Diagrammes},
     note = {talk:3},
     pages = {L1--L4},
     publisher = {Universit\'e Paris 7, Unit\'e d'enseignement et de recherche de math\'ematiques},
     volume = {21},
     year = {1989},
     mrnumber = {1021088},
     zbl = {0686.18001},
     language = {fr},
     url = {http://www.numdam.org/item/DIA_1989__21__A3_0/}
}