Allen, F. H.; Kennard, O.; Watson, D. G.; Brammer, L.; Orpen, A. G.; Taylor, R. (1987). „Table of Bond Lengths Determined by X-Ray and Neutron Diffraction”. J. Chem. Soc., Perkin Trans. 2 (12): S1–S19. DOI:10.1039/P298700000S1.
Orpen, A. Guy; Brammer, Lee; Allen, Frank H.; Kennard, Olga; Watson, David G.; Taylor, Robin (1989). „Supplement. Tables of bond lengths determined by X-ray and neutron diffraction. Part 2. Organometallic compounds and co-ordination complexes of the d- and f-block metals”. Journal of the Chemical Society, Dalton Transactions (12): S1. DOI:10.1039/DT98900000S1.
