Issue No.12 - December (1979 vol.12)
H.E. Dunsmore , Purdue University
The language features selected affect the difficulty of the programming process. Proper choices of variables referenced and those "alive" per statement may simplify both program construction and maintenance.
H.E. Dunsmore, J.D. Gannon, "Data Referencing: An Empirical Investigation", Computer, vol.12, no. 12, pp. 50-59, December 1979, doi:10.1109/MC.1979.1658576