Die Achenbach-Feier in Düsseldorf
1885
Miscellaneous
Electronic Resource
German
DataCite | 1896
|Oswald Achenbach in Italien und daheim
DataCite | 1916
|Die Ausstellung in der Akademie (Achenbach - Menzel - Schrader)
DataCite | 1895
Achenbach and the 1874 Tail Rotor Helicopter
British Library Conference Proceedings | 2005
|2005 John Schneider Lecture: The 1874 Achenbach Tail-Rotor Helicopter
Online Contents | 2005