1. Bodson, M. and Douglas, S.C., Adaptive Algorithms for the Rejection of Periodic Disturbances with Unknown Frequencies, Automatica, 1997, vol. 33, pp. 2213–2221.
2. Marino, R., Santosuosso, G.L., and Tomei, P., Robust Adaptive Compensation for Biased Sinusoidal Disturbances with Unknown Frequency, Automatica, 2003, vol. 9, pp. 1755–1761.
3. Marino, R. and Tomei, R., Output Regulation for Linear Minimum Phase Systems with Unknown Order Exosystem, IEEE Trans. Automat. Control, 2007, vol. 52, pp. 2000–2005.
4. Bobtsov, A.A. and Kremlev, A.S., Synthesis of an Observer in the Problem of Compensation for Finite-Dimensional Quasiharmonic Disturbance, Izv. Ross. Akad. Nauk, Teor. Sist. Upravlen., 2005, no. 3, pp. 5–11.
5. Bobtsov, A.A. and Kremlev, A.S., The Algorithm of Compensation for Unknown Sinusoidal Disturbance for a Linear Nonminimum-Phase Object, Mekhatronika, Avtomatiz., Upravl., 2008, no. 10, pp. 14–17.