1
Published: 1980
Superior document: Schriftenreihe für Mitarbeiter der Metallwerk Plansee Aktienges. 3
2
Published: 1973
Superior document: Schriftenreihe für Mitarbeiter der Metallwerk Plansee Aktienges. 3
3
Published: 1962
Superior document: Plansee Seminar "De Re Metallica" 4
4
Published: 1965
Superior document: Plansee Seminar "De Re Metallica" 5
5
Published: 1953
Superior document: Plansee Seminar "De Re Metallica" 1