net (页面存档备份,存于互联网档案馆) Personal website on Hegra (Madain Saleh) (picture, text, map, video and sound) at hegra.fr (页面存档备份,存于互联网档案馆) Photos from Mauritian
(Pakistan). 7 October 2008 [8 October 2018]. Haugen, Martin. Lotten fra Hegra Festning er død. Stjørdalens Blad. 7 October 2008 [13 October 2008]. (原始内容存档于9
翁達爾斯內斯登陸(英语:Åndalsnes landings) 克瓦姆(英语:Battle for Kvam) 海格拉要塞(英语:Battle of Hegra Fortress) 格拉唐恩(英语:Battle of Gratangen) 赫亞拉斯特橋(英语:Battle of Høljarast Bridge)