21 cm Mörser 18 (English Wikipedia)

Analysis of information sources in references of the Wikipedia article "21 cm Mörser 18" in English language version.

refsWebsite

Global rank English rank

1michaelhiske.de

low place

low place

1books.google.com

3^rd place

3^rd place

books.google.com

Hogg, Ian V. (2013). German Artillery of World War Two (Paperback ed.). Barnsley, United Kingdom: Frontline Books. p. 91. ISBN 978-1-84832-725-2. Retrieved 8 October 2017.

michaelhiske.de

"Munition der 21 cm Geschosse". www.michaelhiske.de (in German). Retrieved 16 June 2024.