Pohl, W. ; Bonin, H. (Thesis advisor) ; Langer, P. (Thesis advisor)
URL: https://publications.rwth-aachen.de/record/974107/files/974107_kardex.pdf
Maier-Paape, S. (Corresponding author)
URL: http://www.instmath.rwth-aachen.de/Preprints/maier-paape20161129.pdf
Oberrath, R. (Author) ; Böhning-Gaese, K. (Thesis advisor)
URN: urn:nbn:de:hbz:82-opus-880