Laing, Michael«A Revised Periodic Table: With the Lanthanides Repositioned».Foundations of Chemistry,7,3,2005,p.203-233. DOI: 10.1007/s10698-004-5959-9.
Marinsky, J. A.;Glendenin, L. E.;Coryell, C. D.«The chemical identification of radioisotopes of neodymium and of element 61».Journal of the American Chemical Society,69,11,1947,p.2781–5. DOI: 10.1021/ja01203a059. PMID: 20270831.
Marinsky, J. A.;Glendenin, L. E.;Coryell, C. D.«The chemical identification of radioisotopes of neodymium and of element 61».Journal of the American Chemical Society,69,11,1947,p.2781–5. DOI: 10.1021/ja01203a059. PMID: 20270831.