A 15 MIPS 32 b microprocessor: J Yetter, M Forsyth, W Jaffe, D Tanksalvala, J Wheeler (Hewlett Packard, Fort Collins, CO, USA) 1987 IEEE International Solid State Circuits Conference. Digest of Technical Papers. ISSCC. First. Edition, New York, USA, 25–27 Feb. 1987 (Coral Gables, FL, USA: Lewis Winner, Feb. 1987), pp. 26–27, 325. In German