Alexandros Chremos; Jack F. Douglas (2015). "When does a branched polymer become a particle?". J. Chem. Phys. (dalam bahasa Inggris). 143: 111104. doi:10.1063/1.4931483.
Zalkin A., Templeton D.H., Karraker D.G (1969). "Crystal and molecular structure of the heptacoordinate complex tris(diphenylpropanedionato)aquoholmium, Ho(PhCOCHCOPh)3.H2O". Inorganic Chemistry (dalam bahasa Inggris). 8 (12): 2680 – 2684. doi:10.1021/ic50082a029.Pemeliharaan CS1: Banyak nama: authors list (link)
Persson, Ingmar (2010). "Hydrated metal ions in aqueous solution: How regular are their structures?". Pure and Applied Chemistry (dalam bahasa Inggris). 82 (10): 1901–1917. doi:10.1351/PAC-CON-09-10-22. ISSN0033-4545.
Ernst, K. , Wild, F. R., Blacque, O. & Berke, H. (2011). "Alfred Werner's Coordination Chemistry: New Insights from Old Samples". Angew. Chem. Int. Ed. (dalam bahasa Inggris). 50: 10780–10787. doi:10.1002/anie.201104477.Pemeliharaan CS1: Banyak nama: authors list (link)
Persson, Ingmar (2010). "Hydrated metal ions in aqueous solution: How regular are their structures?". Pure and Applied Chemistry (dalam bahasa Inggris). 82 (10): 1901–1917. doi:10.1351/PAC-CON-09-10-22. ISSN0033-4545.