Proposal: evaluation of environments. - Mack W. Alford; Larry E. Druffel; Ben Elliott; Richard E. Fairley; Raymond C. Houghton Jr.; J. Ramanathan; Samuel T. Redwine Jr.; P. G. Richards; Alan R. Segal; Leon G. Stucki; Jack C. Wileden (ACM SIGSOFT Softw. Eng. Notes, 1982)