TY  - RPRT
TI  - Visual pattern interpretable as reversible or figure-background.
AU  - J Radilová
AU  - T Radil-Weiss
AU  - J Spunda
AU  - M Indra
PY  - 1975
UR  - https://pubmed.ncbi.nlm.nih.gov/1179983/
ID  - 1179983
ER  -