TY  - RPRT
TI  - Spin-coupled wave functions for atoms and molecules.
AU  - J Gerratt
AU  - W N Lipscomb
PY  - 1968
DO  - 10.1073/pnas.59.2.332
UR  - https://pubmed.ncbi.nlm.nih.gov/16591601/
ID  - 16591601
ER  -