@article{SD_1963-1964__17_1_A1_0,
     author = {Grillet, Pierre-Antoine},
     title = {Sur la notion d'\'equivalence principale},
     journal = {S\'eminaire Albert Ch\^atelet et Paul Dubreil},
     note = {talk:2},
     pages = {1--35},
     year = {1963-1964},
     publisher = {Secr\'etariat math\'ematique},
     volume = {17},
     number = {1},
     zbl = {0264.20053},
     language = {fr},
     url = {https://www.numdam.org/item/SD_1963-1964__17_1_A1_0/}
}