^White, John G.; Prosen, Richard J.; Kenneth N. Trueblood; Robertson, John H.; Pickworth, Jenny; Hodgkin, Dorothy Crowfoot. Structure of Vitamin B 12 : The Crystal Structure of the Hexacarboxylic Acid derived from B 12 and the Molecular Structure of the Vitamin. Nature. August 1955, 176 (4477): 325–328. Bibcode:1955Natur.176..325H. ISSN 1476-4687. PMID 13253565. doi:10.1038/176325a0(英语).
^Sigel A, Sigel H, Sigel RK (编). Metal-carbon bonds in enzymes and cofactors. Metal Ions in Life Sciences 6. Royal Society of Chemistry. 2009. ISBN 978-1-84755-915-9.
^Linck RC, Rauchfuss TB. Synthetic Models for Bioorganometallic Reaction Centers. Jaouen G (编). Bioorganometallics: Biomolecules, Labeling, Medicine. Weinheim: Wiley-VCH. 2005: 403–435. ISBN 978-3-527-30990-0. doi:10.1002/3527607692.ch12.