found: Destinnová, E. The complete Victor recordings (1914-21) [SR] p1993:insert (Wiegenlied / Mozart)
found: Horsman, E. The bird of the wilderness [SR] [1923]:label (Cradle song / Mozart)
found: Köchel(Anh. C 8.48 (KV 350) Wiegenlied; composed by Bernhard Flies)
found: LC database, Aug. 29, 1996(hdg.: Flies, Bernhard. Wiegenlied)
found: Clough, F.F. World's encyclopaedia of recorded music, 1952:p. 402 (Wiegenlied, K. 350 "Schlafe, mein Prinzchen" NOT by Mozart but by B. Flies)
found: Gramophone Shop encyclopedia of recorded music, 1942:p. 324 (Wiegenlied, K. 350 "Schlafe, mein Prinzchen" "Almost invariably attributed to Mozart, this familiar cradle song or lullaby is really by Bernhard Flies")
found: Grove music online, December 12, 2016(under Fleischmann, (Johann) Friedrich (Anton): Wiegenlied (Gotter), 1v, gui/kbd; published 1796; "Fleischmann's setting of the Wiegenlied 'Schlafe, mein Prinzchen' (from Gotter's Singspiel Esther, 1795), published in 1796, is remarkably similar to the well-known setting of the same year by Bernhard Flies (formerly attributed to Mozart) and may have served as its model.")
found: German Wikipedia, December 12, 2016(under Johann Friedrich Anton Fleischmann: It is now considered highly likely that the lullaby Schlafe, mein Prinzchen, schlaf ein, previously attributed to Wolfgang Amadeus Mozart (KV 350) or the Berlin physician Bernhard Flies, was in fact by Fleischmann. Fleischmann, according to recent research, was the first to set the Wiegenlied "Schlafe, mein Prinzchen, schlaf ein", originally attributed to Mozart. The first bar is identical with the Fliesian version, and the remainder shows similarities, so that one can regard Fleischmann as the creator of the original version; article cites E. Goretzki, D. Krickenberg: Das Wiegenlied "von Mozart"; in Mitteilungen der Internationalen Stiftung Mozarteum, Salzburg, July 1988)
