TY  - RPRT
TI  - ON THE CONTINUOUS GOLD-MINING EQUATION.
AU  - R Bellman
AU  - S Lehman
PY  - 1954
DO  - 10.1073/pnas.40.2.115
UR  - https://pubmed.ncbi.nlm.nih.gov/16589427/
ID  - 16589427
ER  -