1. Time sharing, vs. instant batch processing;Adams;Computers and Automation,1969
2. Interactive problem-solving — An experimental study of lockout effects;Boehm,1971
3. System performance evaluation: survey and appraisal;Calingaert;Comm. ACM,1976
4. Comparing behavior at various computer display consoles in time-shared legal information;Carlisle;RAND Corporation Report p-4448,1970
5. Economic principles for interactive graphic applications;Chasen,1975