The PowerPCTM 604 Microprocessor Design Methodology. - Charles P. Roth; Ricky Lewelling; Timothy B. Brodnax (ICCD, 1994)

Goldstrike 1: Cointerra's first generation crypto-currency processor for bitcoin mining machines. - Javed Barkatullah; Timo Hanke; Ravi Iyengar; Ricky Lewelling; Jim O'Connor (Hot Chips Symposium, 2014)