@article{1195522377, author = {Nakamoto, Ritsuo and Nakamura, Masahiro}, title = {On theorems of Korovkin, II}, journal = {Proc. Japan Acad.}, volume = {41}, number = {9}, year = {1965}, pages = { 433-435}, language = {en}, url = {http://dml.mathdoc.fr/item/1195522377} }
Nakamoto, Ritsuo; Nakamura, Masahiro. On theorems of Korovkin, II. Proc. Japan Acad., Tome 41 (1965) no. 9, pp. 433-435. http://gdmltest.u-ga.fr/item/1195522377/