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References
- ↑ Syuichi Nakano (2005-09-29). "172P/Yeung (2002 BV) (NK 1224)". OAA Computing and Minor Planet Sections. Retrieved 2012-02-25.
- ↑ 172P past, present and future orbital elements
- ↑ "172P/Yeung Orbit". Minor Planet Center . Retrieved 2017-04-09.
