Ігнатов, В. О., О. В. Андреєв, and В. І. Андрєєв. “The Method of Optimal Extrapolation of Random Nonstationary Signals on the Background Noise”. Problems of Informatization and Management, vol. 2, no. 30, Oct. 2010, pp. 79-83, doi:10.18372/2073-4751.2.7645.