Kussainova, L.K., and A.B. Ospanova. “Embedding Theorems of W2Р(V) Difference Weighted Spaces. II ”. Bulletin of the Karaganda University. Mathematics Series, vol. 78, no. 2, June 2015, pp. 83-89, http://mts.buketov.edu.kz/index.php/mathematics-vestnik/article/view/27.