Voir la notice de l'article provenant de la source Czech Digital Mathematics Library
@article{CMUC_1990__31_1_a2, author = {Banaschewski, Bernhard}, title = {On pushing out frames}, journal = {Commentationes Mathematicae Universitatis Carolinae}, pages = {13--21}, publisher = {mathdoc}, volume = {31}, number = {1}, year = {1990}, mrnumber = {1056165}, zbl = {0706.18003}, language = {en}, url = {http://geodesic.mathdoc.fr/item/CMUC_1990__31_1_a2/} }
Banaschewski, Bernhard. On pushing out frames. Commentationes Mathematicae Universitatis Carolinae, Tome 31 (1990) no. 1, pp. 13-21. http://geodesic.mathdoc.fr/item/CMUC_1990__31_1_a2/