TY  - RPRT
TI  - Reversible perspective figures and eye movements.
AU  - L E Flamm
AU  - B O Bergum
PY  - 1977
DO  - 10.2466/pms.1977.44.3.1015
UR  - https://pubmed.ncbi.nlm.nih.gov/876774/
ID  - 876774
ER  -