Paul E. Johnson, Imran A. Zualkernan, David W. Tukey. Types of Expertise: An Invariant of Problem Solving. International Journal of Man-Machine Studies, 39(4):641-665, 1993.
@article{JohnsonZT93, title = {Types of Expertise: An Invariant of Problem Solving}, author = {Paul E. Johnson and Imran A. Zualkernan and David W. Tukey}, year = {1993}, tags = {e-science}, researchr = {https://researchr.org/publication/JohnsonZT93}, cites = {0}, citedby = {0}, journal = {International Journal of Man-Machine Studies}, volume = {39}, number = {4}, pages = {641-665}, }