@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/