Voir la notice de l'article provenant de la source Czech Digital Mathematics Library
@article{CMUC_1975__16_3_a9, author = {Koliha, Jarom{\'\i}r J.}, title = {The product of relatively regular operators}, journal = {Commentationes Mathematicae Universitatis Carolinae}, pages = {531--539}, publisher = {mathdoc}, volume = {16}, number = {3}, year = {1975}, mrnumber = {0380473}, zbl = {0309.47013}, language = {en}, url = {http://geodesic.mathdoc.fr/item/CMUC_1975__16_3_a9/} }
Koliha, Jaromír J. The product of relatively regular operators. Commentationes Mathematicae Universitatis Carolinae, Tome 16 (1975) no. 3, pp. 531-539. http://geodesic.mathdoc.fr/item/CMUC_1975__16_3_a9/