A 300-MHz CMOS voltage-controlled ring oscillator. - S. Khursheed Enam; Asad A. Abidi (IEEE J. Solid State Circuits, 1990)

NMOS IC's for clock and data regeneration in gigabit-per-second optical-fiber receivers. - S. Khursheed Enam; Asad A. Abidi (IEEE J. Solid State Circuits, 1992)