Ipse dixit […]. Extracts from the Unpublished Letters of Chopin to Delfina Potocka (F. Chopin 1810–1849)
Ipse dixit […]. Extracts from the Unpublished Letters of Chopin to Delfina Potocka (F. Chopin 1810–1849), trans. B. Sydow, red. S.P. Mizwa, New York. (PSB, t. 46, s. 186).
