Lotte Motz

ISBN 0-19-515382-0. https://books.google.com/books?id=KlT7tv3eMSwC  Motz, Lotte (1973). “Of Elves and Dwarves”. Arv: Tidskrift för Nordisk Folkminnesforskning

[1875]. Trans. James Stallybrass Grimm's Teutonic Mythology Volume 1. Motz, Lotte. 1984. "The Winter Goddess", Folklore 95:11. Frazer, Sir James George

(2008), Rosor för nordiska trädgårdar : buskrosor, ISBN 978-912735655-9  Motz, Lotte (1984), The Winter Goddess: Percht, Holda and Related Figures in Folklore