1. Approximation of functions of many variables and imbedding theorems;Nikol'skii,1969
2. Imbedding theorems for classes of functions with several bounded derivatives;Bakhvalov;Vestn. MGU. Ser. matem., mekhan.,1963
3. Discrete analog of the multipiicator theorem;Mokin;Zh. vȳchisl. Mat. mat. Fiz.,1971
4. On finite-difference schemes for solving the Dirichlet problem for an elliptic equation with variable coefficients in an arbitrary region;Samarskii;Zh. vȳchisl. Mat. mat. Fiz.,1971
5. The mesh method for a system of partial differential equations;Lebedev,1957