TY  - RPRT
TI  - Necessary conditions for density classification by cellular automata.
AU  - M S Capcarrère
AU  - M Sipper
PY  - 2001
DO  - 10.1103/physreve.64.036113
UR  - https://pubmed.ncbi.nlm.nih.gov/11580400/
ID  - 11580400
ER  -