Ulrich Haller
Funzione
Letteratura
Autor/in: Sechs Schweizer Flugpioniere. Die Brüder Dufaux, Oskar Bider, Alfred Comte, Walter Mittelholzer, Balz Zimmermann, Autor/in: Waldis, Alfred; Co-Autor/in: Haller, Ulrich C.; Co-Autor/in: Eichenberger, Roland, Sign.: LPE 16