1. Phase-locked loops;Gupta;Proc. IEEE,1975
2. A survey of digital phase-locked loops;Lindsey;Proc. IEEE,1981
3. Phase-locked loop techniques. A survey;Hsieh;IEEE Trans. Ind. Electron.,1996
4. Controlled-root formulation for digital phase-locked loops;Stephens;IEEE Trans. Aerosp. Electron. Syst.,1995
5. Phase-Locked Loops for Wireless Communications;Stephens,2002