TY  - RPRT
TI  - Problem solving as model refinement: towards a constructivist epistemology.
AU  - George F Luger
AU  - Joseph Lewis
AU  - Carl Stern
PY  - 2002
DO  - 10.1159/000063735
UR  - https://pubmed.ncbi.nlm.nih.gov/12097862/
ID  - 12097862
ER  -