Media type: E-Article Title: An extension of Herglotz's theorem to the quaternions Contributor: Alpay, Daniel; Colombo, Fabrizio; Kimsey, David P.; Sabadini, Irene Published: Elsevier BV, 2015 Published in: Journal of Mathematical Analysis and Applications, 421 (2015) 1, Seite 754-778 Language: English DOI: 10.1016/j.jmaa.2014.07.025 ISSN: 0022-247X Origination: Footnote: Access State: Open Access