Goethe, Johann Wolfgang von (1827/1819) Noten und Abhandlungen zu besserem Verständnis des West-östlichen Divans. Vol. 6 of Goethe's Werke, Stuttgart, Cotta, 237-239. Translated by Martin Bidney and Peter Anton von Arnim as Notes and Essays for a Better Understanding of the West-Eastern Divan, 2018 "[1]": 278-279.