found: Zhongguo bai gong, 2010:t.p. (李劲松 = Li Jingsong)
found: Li Bing, 1993:p. 4 of cover (李劲松 = Li Jingsong; bachelor's degree, Beijing Univ. of Chemical Technology, 1986, majoring in polymer chemistry; librarian, Institute for the History of Natural Sciences, Chinese Academy of Sciences)
found: Institute for the History of Natural Sciences, Chinese Academy of Sciences WWW site, Feb. 21, 2013(李劲松 = Li Jingsong; Li Jinsong [in rom.]; b. 1965; research interests include: chem. & ed. history in ancient China, traditional crafts in China)
