Langer, Johnni. “The Sky of the Vikings: An Ethno-Astronomical Interpretation of Ockelbo’s Runestone (GS 19)”. Domínios da Imagem 7, no. 12 (June 30, 2013): 97–112. Accessed April 18, 2025. https://ojs.uel.br/revistas/uel/index.php/dominiosdaimagem/article/view/21189.