Bekmaganbetov, K.A., K.Ye. Kervenev, and Ye. Toleugazy. “Interpolation Theorem for Nikol’skii-Besov Type Spaceswith Mixed Metric”. Bulletin of the Karaganda University. Mathematics Series 100, no. 4 (December 30, 2020): 33–42. Accessed September 4, 2025. http://mts.buketov.edu.kz/index.php/mathematics-vestnik/article/view/379.