U-49号潜艇 (1915年) (Chinese Wikipedia)

Analysis of information sources in references of the Wikipedia article "U-49号潜艇 (1915年)" in Chinese language version.

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archive.org

Herzog，第48頁. Herzog, Bodo. Deutsche U-Boote 1906–1966. Erlangen: Karl Müller Verlag. 1993. ISBN 3-86070-036-7.
Herzog，第68頁. Herzog, Bodo. Deutsche U-Boote 1906–1966. Erlangen: Karl Müller Verlag. 1993. ISBN 3-86070-036-7.
Herzog，第89頁. Herzog, Bodo. Deutsche U-Boote 1906–1966. Erlangen: Karl Müller Verlag. 1993. ISBN 3-86070-036-7.

Honours to the Mercantile Marine. 倫敦憲報 (Supplement). No. 30536. 22 February 1918.

Helgason, Guðmundur. WWI U-boats: U 49. German and Austrian U-boats of World War I - Kaiserliche Marine - Uboat.net.
Helgason, Guðmundur. WWI U-boat commanders: Richard Hartmann. German and Austrian U-boats of World War I - Kaiserliche Marine - Uboat.net. [2021-08-30].
Helgason, Guðmundur. Ships hit during WWI: Vienna. German and Austrian U-boats of World War I - Kaiserliche Marine - Uboat.net. [2021-08-27].
Helgason, Guðmundur. Ships hit by U 49. German and Austrian U-boats of World War I - Kaiserliche Marine - Uboat.net. [30 November 2014].