Gerhards, H. ; Blümel, E. (Thesis advisor) ; Meyer, R. (Thesis advisor)
URL: https://publications.rwth-aachen.de/record/818400/files/818400_kardex.pdf
Gormans, A. (Author) ; Holländer, H. (Thesis advisor)
URN: urn:nbn:de:hbz:82-opus-5518