1. National Semiconductor Application Notes: AN-43: Tri-State Logic in Modular Systems, 1971 AN-45: Characteristics and applications of Tri-State IC’s, 1971
2. Hahn, W.; Bauer, F.L.: Physikalische und elektrotechnische Grundlagen für Informatiker, Berlin-Heidelberg-New York 1975 (Heidelberger Taschenbücher Band 147)
3. Advanced Micro Devices Application Note: Operation of the 9130/40 4K Static Rams
4. Texas Instruments Bulletin MOSA1: Memory System Design Utilizing TMS 4050/4051 4K Dynamic RAMs, 1976
5. Texas Instruments Bulletin MOSA3: Introduction to Refreshing TI 4K Dynamic RAMs, 1976