Wagner, Richard (1843). "An Autobiographical Sketch". The Wagner Library. Translated by William Ashton Ellis. Archived from the original on 2013-05-11. Retrieved 2007-06-10.
Wagner, Richard (1843). "An Autobiographical Sketch". The Wagner Library. Translated by William Ashton Ellis. Archived from the original on 2013-05-11. Retrieved 2007-06-10.