TY  - RPRT
TI  - Tautologies in epidemic models.
AU  - P R Sheehe
AU  - H A Feldman
PY  - 1979
DO  - 10.1093/infdis/139.5.618a
UR  - https://pubmed.ncbi.nlm.nih.gov/438554/
ID  - 438554
ER  -