TY  - RPRT
TI  - The information-processing approach.
AU  - A H van der Heijden
AU  - S Stebbins
PY  - 1990
DO  - 10.1007/bf00877528
UR  - https://pubmed.ncbi.nlm.nih.gov/2281128/
ID  - 2281128
ER  -