@article{STS_1977-1978__1__A3_0,
     author = {Ehrsam, S\'ebastien},
     title = {Th\'eories $\omega _1$-cat\'egoriques},
     journal = {Groupe d'\'etude de th\'eories stables},
     note = {talk:3},
     pages = {1--6},
     publisher = {Secr\'etariat math\'ematique},
     volume = {1},
     year = {1977-1978},
     language = {fr},
     url = {http://archive.numdam.org/item/STS_1977-1978__1__A3_0/}
}