"Verdens største gassferge" [The world's largest gas ferry]. Maritimt Magasin (in Norwegian). 2012-01-23. Archived from the original on 2012-02-10. Retrieved 2012-01-30.
"Verdens største gassferge" [The world's largest gas ferry]. Maritimt Magasin (in Norwegian). 2012-01-23. Archived from the original on 2012-02-10. Retrieved 2012-01-30.