Voir la notice de l'article provenant de la source European Digital Mathematics Library
@article{MM2_1976__19_154409, author = {Robert Schumacher}, title = {Zur {Minimalit\"at} {Trigonometrischer} {Polynomoperatoren.}}, journal = {Manuscripta mathematica}, pages = {133--142}, publisher = {mathdoc}, volume = {19}, year = {1976}, zbl = {0328.42001}, url = {http://geodesic.mathdoc.fr/item/MM2_1976__19_154409/} }
Robert Schumacher. Zur Minimalität Trigonometrischer Polynomoperatoren.. Manuscripta mathematica, Tome 19 (1976), pp. 133-142. http://geodesic.mathdoc.fr/item/MM2_1976__19_154409/