@article{JRAM_1977__296_151941,
     author = {Olaf von Grudzinski},
     title = {Eine {Klasse} von {Convolutoren.}},
     journal = {Journal f\"ur die reine und angewandte Mathematik},
     pages = {171--204},
     publisher = {mathdoc},
     volume = {296},
     year = {1977},
     zbl = {0359.46024},
     url = {http://geodesic.mathdoc.fr/item/JRAM_1977__296_151941/}
}