- ^ Okamato, Y.; Brenner, W.; Goswami, J. C. Organo rare earth compounds--organo yttrium compounds. Proc. Conf. Rare Earth Res., 3rd, Clearwater, Florida, 1964. pp 99-104. CAN64: 52178.
- ^ Vitali K. Belsky, Anatoli B. Erofeev, Boris M. Bulychev, Grigori L. Soloveichik. Synthesis and molecular structure of solvated hydride complexes of aluminium and di-η5-cyclopentadienylyttrium. Journal of Organometallic Chemistry. 1984-04, 265 (2): 123–133 [2020-12-09]. doi:10.1016/0022-328X(84)80065-0. (原始內容存檔於2018-07-01) (英語).