Рибін, О.І., and А.П. Ткачук. 2006. “The Analisis of Linear Systems in Basis of Walsh-Hadamard Transformation”. Visnyk NTUU KPI Seriia - Radiotekhnika Radioaparatobuduvannia, no. 33 (September):14-23. https://doi.org/10.20535/RADAP.2006.33.14-23.