TY  - RPRT
TI  - Regularities Exhibited between Certain Multiplets for Elements in the Second Long Period.
AU  - R C Gibbs
AU  - H E White
PY  - 1928
DO  - 10.1073/pnas.14.7.559
UR  - https://pubmed.ncbi.nlm.nih.gov/16587363/
ID  - 16587363
ER  -