PhaseLocked Loops for HighFrequency Receivers and Transmitters, Mike Curtin &; Paul O’Brien, Analog Devices Part1  Part2  Part3 
Practical Tips for Phase Locked Loop Design, Dennis Fischette

Fractional/IntegerN PLL Basics, Curtis Barrett, Texas Intruments 
PLL Performance, Simulation and Design Handbook 4th Edition Dean Banerjee, Natioanal Semiconductor 
A Fully Integrated FractionalN Frequency Synthesizer for Wireless Communications, HanWoong Son, Georgia Institute of Technology 
Design of Monolithic PhaseLocked Loops and Clock Recovery Circuits – A Tutorial, B. Razavi, IEEE Press, 1996 
High Speed Communication Circuits, MIT OpenCourseware Lec21  Lec22  Lec23 
Frequency Dividers 
Superharmonic injection locked frequency dividers, H. Rategh and T. Lee, IEEE J. SolidState Circuits, vol. 34, pp. 813–821, June 1998. 
A CMOS frequency synthesizer with an injectionlocked frequency divider for a 5 GHz Wire LAN receiver, H. Rategh, H. Samavati, and T. Lee, IEEE J. SolidState Circuits, vol. 35, pp. 779–786, May 2000 
A Fully Integrated CMOS DCS1800 Frequency Synthesizer, Craninckx, IEEE Jr. SolidState Circuits, Vol.33, pp. 20542065, December 1998 
A Design Methodology for MOS CurrentMode Logic Frequency Dividers, Roberto Nonis, Enzo Palumbo, Pierpaolo Palestri, Luca Selmi, IEEE Tran. on Circuits and Systems, Vol.54, pp. 245254, February 2007 
Phase Noise 
Oscillator Phase Noise: A Tutorial, Hajimiri &; Thomas H. Lee, IEEE Journal of SolidState Circuits, vol. 35, pp. 326336, March 2000 
A Study of Phase Noise in CMOS Oscillators., B. Razavi, IEEE Journal of SolidState Circuits, vol. 31, pp. 331343, March 1996 
Phase Noise – Basic Principles, Kevin Aylward Invalidity of The LTV Model For Real Circuits (Interesing, worth taking a look) 
Transistor LC Oscillators for Wireless Applications: Theory and Design Aspects, Grebennikov Part1  Part2  Part3 