Vowinkel, Heike (27 September 2009). "Drei Generationen Tibet" [Three generations of Tibet]. Die Welt (in German). Archived from the original on 20 June 2023. Retrieved 22 November 2014.
Vowinkel, Heike (27 September 2009). "Drei Generationen Tibet" [Three generations of Tibet]. Die Welt (in German). Archived from the original on 20 June 2023. Retrieved 22 November 2014.