AL-SAFFAR, Alaa A. W. Optical Parallel Quaternary Signed Digit Multiplier For Large Scale Two-Dimensional Array Using Digit-Decomposition Plane Representation. Iraqi Journal for Electrical and Electronic Engineering, [S. l.], v. 3, n. 1, p. 21–32, 2007. DOI: 10.37917/ijeee.3.1.2. Disponível em: https://ijeee.edu.iq/ijeee/article/view/38. Acesso em: 8 dec. 2025.