Auteur: Pio, Iorn (2 titels)
- Piö, Iörn Christmas traditions in Scandinavia. in: Custom, culture and community in the later Middle Ages. Proceedings of the 17th international symposium organized by the Centre for Medieval Studies, Odense University 16-18 November 1992. Ed. Leif Söndergaard, Thomas Pettitt. 57-69 (1994)
- Pio, Iorn (1991)
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