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Luckas-bot (토론 | 기여) 잔글 r2.7.1) (로봇이 더함: simple:Railway gun |
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21번째 줄:
* Engelmann, Joachim (1976). Armor in Action - German Railroad Guns. Squadron/Signal Publications. ISBN 0-89747-048-6.
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{{commons|Category:Railway guns}}
*[http://southern.railfan.net/ties/1961/61-12/art.html "When Artillery First "Took to the Rails"]
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