Efficient Computer-User Interface in Electronic Mail Systems. - Omer Akin; D. Radha Rao (Int. J. Man Mach. Stud., 1985)

Structure of a Directory Space: A Case Study with a UNIX Operating System. - Omer Akin; Can A. Baykan; D. Radha Rao (Int. J. Man Mach. Stud., 1987)