1984, 1989.Marcel Franciscono: Paul Klee: His Work and Thought. University Of Chicago Press, 406 pages, 1991, ISBN 0-226-25990-0.Wilhelm Hausenstein (1921) Kairuan oder eine Geschichte vom Maler Klee und von der Kunst dieses Zeitalters ('Kairuan or a History of the Artist Klee and the Art of this Age')බාහිර සම්බන්ධක[සංස්කරණය]Zentrum Paul Klee - The Paul Klee museum in Bern සංරක්ෂණය කළ පිටපත 2006-06-28 at the Wayback MachineCurrent exhibitions and connection to galeries at Artfacts.Net Paul Klee – Swissinfo web special සංරක්ෂණය කළ පිටපත 2010-12-03 at the Wayback MachinePaul Klee at the Museum of Modern Art (MoMA)Klee's MandalasGallery of Klee's artwork සංරක්ෂණය කළ පිටපත 2009-09-17 at the Wayback Machine: Only thumbnails, no full images on display.උද්ධ්‍රැත[සංස්කරණය]<references>↑ Julie Rauer (2006). "Klee's Mandalas". asianart. සම්ප්‍රවේශය 2008-02-10.↑ Gualtieri Di San Lazzaro, Klee, Praeger, New York, 1957, p. 16↑ 3.0 3.1 Partsch, p. 8↑ 4.0 4.1 Partsch, p. 9↑ Partsch