1. Radhakrishnan, D.: ‘The design and analysis of pass transistor switching circuits’, 1983, PhD, University of Idaho Moscow Idaho USA
2. Weste, N., and Eshraghian, K.: ‘Principles of CMOS VLSI design, a systems perspective’, (Addison-Wesley Reading MA 1993)
3. New efficient designs for XOR and XNOR functions on the transistor level