Article Dong, Yuyu (2014)
A Study on the Forged Phenomena and the Reasons for Their Occurrence in Northern Song Astronomy. Ziran Kexueshi Yanjiu (Studies in the History of Natural Sciences) (pp. 145-157). (/isis/citation/CBB802487525/) unapi

Article Dong, Yuyu (2008)
A Study on the Performance of the Northern Song Government's Managing Astronomical Activities by Analyzing Fengyuan Li Reform. Ziran Kexueshi Yanjiu (Studies in the History of Natural Sciences) (p. 203). (/isis/citation/CBB000933524/) unapi

Article Dong, Yuyu; Guan, Zengjian (2004)
A Preliminary Discourse on the Management of Astronomical Documents in the Song Dynasty. Ziran Kexueshi Yanjiu (Studies in the History of Natural Sciences) (p. 345). (/isis/citation/CBB000502099/) unapi