Modeling and Simulation of Noise in Closed-Loop All-Digital PLLs using Verilog-A. - Walter Fergusson; Rakesh H. Patel; William Bereza (CICC, 2007)

Nonlinear behavior study in digital bang-bang PLL. - Albert Vareljian; Mohsen Moussavi; William Bereza; Walter Fergusson; Charles E. Berndt; Rakesh H. Patel (CICC, 2009)