TY  - RPRT
TI  - Verifying environmental relationships.
AU  - R C Sherman
AU  - C Oliver
AU  - W Titus
PY  - 1980
DO  - 10.3758/bf03213775
UR  - https://pubmed.ncbi.nlm.nih.gov/7219176/
ID  - 7219176
ER  -