Beerwald, H. ; Fucks, W. (Thesis advisor) ; Uhlenbusch, J. (Thesis advisor)
URL: https://publications.rwth-aachen.de/record/768813/files/768813_kardex.pdf
Gerhardy, C. (Author) ; Schomburg, W. K. (Thesis advisor)
URN: urn:nbn:de:hbz:82-opus-29664