@article{10_4064_cm_74_1_79_92, author = {Hermann Render}, title = {Hadamard's multiplication theorem - recent developments}, journal = {Colloquium Mathematicum}, pages = {79--92}, publisher = {mathdoc}, volume = {74}, number = {1}, year = {1997}, doi = {10.4064/cm-74-1-79-92}, language = {en}, url = {http://geodesic.mathdoc.fr/articles/10.4064/cm-74-1-79-92/} }