Richard L. Nolan. Managing the Computer Resource: A Stage Hypothesis. Communications of the ACM, 16(7):399-405, 1973.
@article{Nolan73:0, title = {Managing the Computer Resource: A Stage Hypothesis}, author = {Richard L. Nolan}, year = {1973}, researchr = {https://researchr.org/publication/Nolan73%3A0}, cites = {0}, citedby = {0}, journal = {Communications of the ACM}, volume = {16}, number = {7}, pages = {399-405}, }