[unknown]
Commentarii mathematici Helvetici, Tome 46 (1971), p. 408.
Voir la notice de l'article dans European Digital Mathematics Library
@misc{CMH_1971__46_186141, title = {[unknown]}, journal = {Commentarii mathematici Helvetici}, pages = {408}, publisher = {mathdoc}, volume = {46}, year = {1971}, language = {un}, url = {https://geodesic-test.mathdoc.fr/item/CMH_1971__46_186141/} }
[unknown]. Commentarii mathematici Helvetici, Tome 46 (1971), p. 408. https://geodesic-test.mathdoc.fr/item/CMH_1971__46_186141/