Helgoland : diforc'h etre ar stummoù
Endalc’h diverket Danvez ouzhpennet
Aerial image of Heligoland replaced with a current aerial image of higher resolution. |
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Linenn 19:
{{reflist}}
==
=== Kelaouennoù ===
* Charlier, C. (1947) "[http://adsabs.harvard.edu/abs/1948C&T....64..193C L'explosion d'Heligoland. - Discussion des observations effectuées à Uccle]", ''Ciel et Terre'', '''64''', p. 193–214 (galleg)
Linenn 28:
* Black, William G. (1888) ''Heligoland and the Islands of the North Sea'', London : W. Blackwood & Sons, 199 p.
* Drower, George (2003) ''Heligoland - The True Story of German Bight and the Island that Britain Betrayed'', Sutton, ISBN 0-7509-2600-7
* Ritsema, Alex (2007) ''Heligoland, Past and Present'', Lulu.com, ISBN 1-84753-190-3
== Liammoù diavaez ==
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