@article{SPHM_1992___9_A1_0,
     author = {\'Ecole Normale Sup\'erieure},
     title = {Le s\'eminaire a 20 ans},
     journal = {S\'eminaire de Philosophie et Math\'ematiques},
     pages = {1--59},
     publisher = {IREM Paris-Nord},
     number = {9},
     year = {1992},
     language = {fr},
     url = {http://archive.numdam.org/item/SPHM_1992___9_A1_0/}
}