TY  - RPRT
TI  - Developmental systems without cellular interactions, their languages and grammars.
AU  - A Lindenmayer
PY  - 1971
DO  - 10.1016/0022-5193(71)90002-6
UR  - https://pubmed.ncbi.nlm.nih.gov/5575762/
ID  - 5575762
ER  -