title: Obituary for Dr Peter Werle.
authors: a Florence , Italy.
authors: Francesco
authors: F
authors: D'Amato
authors: Alan
authors: A
authors: Fried
authors: Erik
authors: E
authors: Kerstel
mesh_terms: D005858:Germany; D049673:History, 20th Century; D049674:History, 21st Century; D007834:Lasers; D010825:Physics / Q000266:history*; D013057:Spectrum Analysis / Q000379:methods