Press reports on the occasion of the 1st Redtenbacher Symposium in Steyr. To celebrate Redtenbacher´s 200th birthday the city of Steyr released an information folder
Research work in the archive of Ledwinka
Auf den Spuren Hans Ledwinkas
Commemoration of the 150th Anniversary of Ferdinand Redtenbacher’s death on April 16, 2013 in the Steyr City Library: Press reports