SpringerLink (Online service). (1972). The Approximation of Continuous Functions by Positive Linear Operators. Springer.
Chicago Style (17th ed.) CitationSpringerLink (Online service). The Approximation of Continuous Functions by Positive Linear Operators. Berlin [u.a.]: Springer, 1972.
MLA (9th ed.) CitationSpringerLink (Online service). The Approximation of Continuous Functions by Positive Linear Operators. Springer, 1972.
Warning: These citations may not always be 100% accurate.