U-47号潜艇 (1915年) (Chinese Wikipedia)

Analysis of information sources in references of the Wikipedia article "U-47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89頁. Herzog, Bodo. Deutsche U-Boote 1906–1966. Erlangen: Karl Müller Verlag. 1993. ISBN 3-86070-036-7.

Helgason, Guðmundur. WWI U-boat commanders: Heinrich Metzger. German and Austrian U-boats of World War I - Kaiserliche Marine - Uboat.net. [12 January 2015].
Helgason, Guðmundur. WWI U-boat commanders: Johannes Feldkirchner. German and Austrian U-boats of World War I - Kaiserliche Marine - Uboat.net. [12 January 2015].
Helgason, Guðmundur. WWI U-boat commanders: Otto Gerke. German and Austrian U-boats of World War I - Kaiserliche Marine - Uboat.net. [12 January 2015].
Helgason, Guðmundur. WWI U-boat commanders: Wilhelm Canaris. German and Austrian U-boats of World War I - Kaiserliche Marine - Uboat.net. [12 January 2015].
Helgason, Guðmundur. WWI U-boat commanders: Adolf Franz. German and Austrian U-boats of World War I - Kaiserliche Marine - Uboat.net. [12 January 2015].
Helgason, Guðmundur. WWI U-boat commanders: Erich Gerth. German and Austrian U-boats of World War I - Kaiserliche Marine - Uboat.net. [12 January 2015].
Helgason, Guðmundur. WWI U-boat commanders: Carl Bünte. German and Austrian U-boats of World War I - Kaiserliche Marine - Uboat.net. [12 January 2015].
Helgason, Guðmundur. Ships hit by U 47. German and Austrian U-boats of World War I - Kaiserliche Marine - Uboat.net. [12 January 2015].