TY  - RPRT
TI  - Active navigation and orientation-free spatial representations.
AU  - Hong-Jin Sun
AU  - George S W Chan
AU  - Jennifer L Campos
PY  - 2004
DO  - 10.3758/bf03195820
UR  - https://pubmed.ncbi.nlm.nih.gov/15078044/
ID  - 15078044
ER  -