TY  - RPRT
TI  - Distance, size and shape.
AU  - L S PENROSE
PY  - 1954
DO  - 10.1111/j.1469-1809.1952.tb02527.x
UR  - https://pubmed.ncbi.nlm.nih.gov/13149002/
ID  - 13149002
ER  -