[Helmholtz in Königsberg; in commemoration of the invention of the ophthalmoscope].
D049672:History, 19th Century; D062069:Inventions; D019721:Ophthalmoscopes; D009887:Ophthalmoscopy
BIOGRAPHY; OPHTHALMOSCOPY
Helmholtz in Königsberg; zur hundertjährigen Wiederkehr der Erfindung des Augenspiegels.