Finding ellipses what Blaschke products, Poncelet's theorem, and the numerical range know about each other von Daepp, Ulrich

Available for University of the Philippines Diliman via EBSCO. Click here to access
Also available remotely for University of the Philippines Diliman via EBSCO. Click here to access thru EZproxy

Reading, writing, and proving a closer look at mathematics von Daepp, Ulrich

Available for UP System via Springer Link.