1
by Stoof, Magdalena
published 1992
Thesis Book Hochschulschrift
2
by Grassinger, Dagmar
published 1991
Thesis Book Hochschulschrift
3
by Manderscheid, Hubertus
published 1981
Thesis Book Hochschulschrift
4
by Wenning, Robert
published 1978
Thesis Book Hochschulschrift