991 (CMXCI) lâi normaalihe, mii aalgij já nuuvâi juliaanlâš kalender mield tuorâstuv. Tot lâi 990-lovo nubbe ihe.
- ↑ Da Mosto, Andrea: I dogi di Venezia. Firenze: Giunti Editore, 2003. ISBN 88-09-02881-3.
- ↑ Orsèolo, Pietro II Treccani. Čujottum 26.12.2023. (italiakielân)
- ↑ Brown, Delmer M. & Ishida, Ichirō: Gukanshō: The Future and the Past, s. 299–300. Berkeley: University of California Press, 1979.
- ↑ Varley, H. Paul: Jinnō Shōtōki: A Chronicle of Gods and Sovereigns, s. 191–192. New York: Columbia University Press, 1980.
- ↑ Titsingh, Isaac: Annales des empereurs du Japon, s. 144–148. Pariisi: Royal Asiatic Society, Oriental Translation Fund of Great Britain and Ireland, 1834.
- ↑ History of Song, vol. 479 zh.wikisource.org. Čujottum 21.1.2023. (kiinakielân)
- ↑ Zizhi Tongjian, vol. 289 zh.wikisource.org. Čujottum 21.1.2023. (kiinakielân)
- ↑ Spring and Autumn Annals of the Ten Kingdoms, vol. 81 zh.wikisource.org. Čujottum 31.1.2023. (kiinakielân)
- ↑ History of Song, vol. 480 zh.wikisource.org. Čujottum 31.1.2023. (kiinakielân)