@article{JRAM_1984__350_152635,
     author = {Bernd Carl and Irmtraud Stephani},
     title = {Estimating compactness properties of operators by the aid of generalized entropy numbers.},
     journal = {Journal f\"ur die reine und angewandte Mathematik},
     pages = {117--136},
     publisher = {mathdoc},
     volume = {350},
     year = {1984},
     zbl = {0527.47030},
     url = {http://geodesic.mathdoc.fr/item/JRAM_1984__350_152635/}
}