TY  - RPRT
TI  - Second generation immune networks.
AU  - F J Varela
AU  - A Coutinho
PY  - 1991
DO  - 10.1016/s0167-5699(05)80046-5
UR  - https://pubmed.ncbi.nlm.nih.gov/1878127/
ID  - 1878127
ER  -