David Buchan, Vesteinn Olason: The Traditional Ballads of Iceland: Historical Studies. In: The Journal of American Folklore. Band100, Nr.397, Juli 1987, ISSN0021-8715, S.367, doi:10.2307/540353.
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David Buchan, Vesteinn Olason: The Traditional Ballads of Iceland: Historical Studies. In: The Journal of American Folklore. Band100, Nr.397, Juli 1987, ISSN0021-8715, S.367, doi:10.2307/540353.