"Halsten", Nationalencyklopedin Kaliff, A. (2001) Gothic Connections, Contacts between eastern Scandinavia and the southern Baltic coast 1000BC-500AD.
"Halsten"، الموسوعة الوطنية السويدية  الوسيط |العنوان= تم تجاهله (مساعدة) Kaliff, A. (2001) Gothic Connections, Contacts between eastern Scandinavia and the southern Baltic coast 1000BC-500AD.