TY  - RPRT
TI  - Spatial knowledge acquisition from maps and from navigation in real and virtual environments.
AU  - A E Richardson
AU  - D R Montello
AU  - M Hegarty
PY  - 1999
DO  - 10.3758/bf03211566
UR  - https://pubmed.ncbi.nlm.nih.gov/10479831/
ID  - 10479831
ER  -