Title: Geschichte der U-Boot-Sehrohre bei Carl Zeiss :
Authors: Schlemmer, Harry,
Date: 2011
Publisher: E.S. Mittler & Sohn,
Physical description: 191 pages : illustrations (some color) ; 25 x 27 cm
Language: German
LC classification: V
Subject headings (LCSH): Carl Zeiss (Firm : 1846)--History.; Carl Zeiss (Firm : 1946)--History.; Periscopes--Germany--History.