Allen Newell. The Knowledge Level (Presidential Address). AI Magazine, 2(2):1, 1980.
@article{Newell80b, title = {The Knowledge Level (Presidential Address)}, author = {Allen Newell}, year = {1980}, researchr = {https://researchr.org/publication/Newell80b}, cites = {0}, citedby = {0}, journal = {AI Magazine}, volume = {2}, number = {2}, pages = {1}, }