TY  - RPRT
TI  - Molecular isomers in vision.
AU  - R Hubbard
AU  - A Kropf
PY  - 1967
DO  - 10.1038/scientificamerican0667-64
UR  - https://pubmed.ncbi.nlm.nih.gov/6046324/
ID  - 6046324
ER  -