@article{JRAM_1976__280_151675,
     author = {Peter Werner},
     title = {\"Uber das {Verhalten} elekromagnetischer {Felder} f\"ur kleine {Frequenzen} in mehrfach zusammenh\"angenden {Gebieten.} {II.}},
     journal = {Journal f\"ur die reine und angewandte Mathematik},
     pages = {98--121},
     publisher = {mathdoc},
     volume = {280},
     year = {1976},
     zbl = {0316.35034},
     url = {http://geodesic.mathdoc.fr/item/JRAM_1976__280_151675/}
}