TY  - RPRT
TI  - Qualitative differences in the representation of spatial relations for different object classes.
AU  - Eric E Cooper
AU  - Brian E Brooks
PY  - 2004
DO  - 10.1037/0096-1523.30.2.243
UR  - https://pubmed.ncbi.nlm.nih.gov/15053686/
ID  - 15053686
ER  -