TY  - RPRT
TI  - Mexican waves in an excitable medium.
AU  - I Farkas
AU  - D Helbing
AU  - T Vicsek
PY  - 2002
DO  - 10.1038/419131a
UR  - https://pubmed.ncbi.nlm.nih.gov/12226653/
ID  - 12226653
ER  -