TY  - RPRT
TI  - Algorithmically unsolvable problems for a cell automaton.
AU  - W R Stahl
PY  - 1965
DO  - 10.1016/0022-5193(65)90017-2
UR  - https://pubmed.ncbi.nlm.nih.gov/5875309/
ID  - 5875309
ER  -