English: Drawing of the german „Zerstörer 1936-class destroyer Z20 as it appeared in 1945. SVG Testing
Additional info obtained from:
Harald Fock : Z-vor!: Internationale Entwicklung und Kriegseinsätze von Zerstörern und Torpedobooten 1914-1945. 1&2, Koehler 1998, ISBN 3782207629
С.В. Патянин: „Эсминцы типа Леберехт Маасс: эскадренные миноносцы серий 34, 34А, 36”, Морская коллекция, 2004, № 05, Москва, издательство «Моделист-Конструктор»
(The author claims Z20 to have carried an additional radar antenna in 1945 on a superstructure behind the second stack, but according to Koop/ Schmolke the original searchlight was still in place)
Siergiej W. Patjanin: Niszczyciele typu „Leberecht Maass”, 2009, Wydawnictwo „Okręty Wojenne”, ISBN 978-83-61069-06-5
Gerhard Koop, Klaus-Peter Schmolke: "German Destroyers of World War II: Warships of the Kriegsmarine",2003, Greenhill, ISBN 978-1853675409
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