Media type: E-Article Title: On Approximation Properties of Phillips Operators Preserving Exponential Functions Contributor: Gupta, Vijay; Tachev, Gancho Published: Springer Science and Business Media LLC, 2017 Published in: Mediterranean Journal of Mathematics, 14 (2017) 4 Language: English DOI: 10.1007/s00009-017-0981-z ISSN: 1660-5454; 1660-5446 Origination: Footnote: