TY  - RPRT
TI  - Constancy and contrast. 3A.
AU  - H K Moed
PY  - 1966
DO  - 10.1016/0001-6918(66)90012-6
UR  - https://pubmed.ncbi.nlm.nih.gov/5947727/
ID  - 5947727
ER  -