The Atlas supervisor. - Tom Kilburn; R. B. Payne; D. J. Howarth (AFIPS Eastern Joint Computing Conference, 1961)

The Manchester University Atlas Operating System Part II: Users' Description. - D. J. Howarth; R. B. Payne; Frank H. Sumner (Comput. J., 1961)

The Manchester University Atlas Operating System Part I: Internal Organization. - Tom Kilburn; D. J. Howarth; R. B. Payne; Frank H. Sumner (Comput. J., 1961)