A Three-Valued D-Flip-Flop and Shift Register Using Multiple-Junction Surface Tunnel Transistors.

Tetsuya Uemura Toshio Baba A Three-Valued D-Flip-Flop and Shift Register Using Multiple-Junction Surface Tunnel Transistors. 89-93 2001 ISMVL db/conf/ismvl/ismvl2001.html#UemuraB01