Nonlinear dynamics of gear-shifting digital phase-locked loops. - Raymond Flynn; Orla Feely (ISCAS (4), 2004)

Dynamical patterns of bang-bang phase-locked loops. - Alexey Teplinsky; Raymond Flynn; Orla Feely (ECCTD, 2005)

Limit cycles in bang-bang phase-locked loops. - Alexey Teplinsky; Raymond Flynn; Orla Feely (ISCAS, 2006)

Limit cycles in Digital Bang-Bang PLLs. - Raymond Flynn; Orla Feely (ECCTD, 2007)