- Allan N. Wilson:
Use of a combined analog-digital system for re-entry vehicle flight simulation. AFIPS Eastern Joint Computing Conference 1961: 105-113 - Willis H. Ware:
Proceedings of the 1961 eastern joint computer conference: computers - key to total systems control, AFIPS 1961 (Eastern), Washington, D.C., USA, December 12-14, 1961. ACM 1961, ISBN 978-1-4503-7873-4 [contents]