Karshygina, G.Zh. “Optimal Embeddings Potentials Type Bessel and Riesz on the Base of Lorentz Spaces”. Bulletin of the Karaganda University. Mathematics Series 88, no. 4 (December 29, 2017): 15–25. Accessed September 7, 2025. http://mts.buketov.edu.kz/index.php/mathematics-vestnik/article/view/173.