TY  - RPRT
TI  - A note on formal learning theory.
AU  - D N Osherson
AU  - S Weinstein
PY  - 1982
DO  - 10.1016/0010-0277(82)90005-1
UR  - https://pubmed.ncbi.nlm.nih.gov/7198953/
ID  - 7198953
ER  -