Altomare, Francesco and Campiti, Michele. "Chapter 1 Preliminaries".
Korovkin-type Approximation Theory and Its Applications, Berlin, New York: De Gruyter, 2011, pp. 15-73.
https://doi.org/10.1515/9783110884586.15
Altomare, F. & Campiti, M. (2011). Chapter 1 Preliminaries. In
Korovkin-type Approximation Theory and Its Applications (pp. 15-73). Berlin, New York: De Gruyter.
https://doi.org/10.1515/9783110884586.15
Altomare, Francesco and Campiti, Michele. "Chapter 1 Preliminaries" In
Korovkin-type Approximation Theory and Its Applications, 15-73. Berlin, New York: De Gruyter, 2011.
https://doi.org/10.1515/9783110884586.15