E.V. Grigorieva, S.A. Kashchenko and D.V. Glazkov, "Local Dynamics of a Model of an Opto-Electronic Oscillator with Time Lag", Automatic Control and Computer Sciences, 52:7, 700–707 (2018). 

E.V. Grigorieva, S.A. Kashchenko and D.V. Glazkov, Local Dynamics of a Model of an Opto-Electronic Oscillator with Time Lag, Automatic Control and Computer Sciences, 52:7, 700–707 (2018).