Europe
1958 The 40th Anniversary of the Republic of Austria
1958 The 40th Anniversary of the Republic of Austria
1958 The 100th Anniversary of the Birth of Professor Dr. Oswald Redlich
1958 The 100th Anniversary of the Birth of Professor Dr. Oswald Redlich
1958 The 3rd Austrian Choir Festival – Vienna
1958 The 3rd Austrian Choir Festival – Vienna