The LRLTRAN language as used in the FROST and FLOE time-sharing operating systems. - Pierre J. DuBois; Jeanne T. Martin (SIGPLAN Symposium on Languages for System Implementation, 1971)

Livermore time-sharing system for the CDC 7600. - George G. Sutherland; Harriet G. Coverston; Pierre J. DuBois; Donald R. Emery; Douglas A. Kent; Paul E. Lund; George H. Powles; F. David Storch; Lee O. Tennant; Donald L. Von Buskirk (ACM SIGOPS Oper. Syst. Rev., 1971)