TY  - RPRT
TI  - Draughts or should I close the window?
AU  - S Levin
AU  - V Cornick
PY  - 1968
DO  - 10.1016/s0140-6736(68)92247-2
UR  - https://pubmed.ncbi.nlm.nih.gov/4171146/
ID  - 4171146
ER  -