The Rijksmuseum | Documentation “Jan Bouterse, 'Early Dutch fipple flutes, with emphasis on the seventeenth century and Jacob van Eyck', The Recorder in the 17th Century: Proceedings of the International Recorder Symposium, ed. by David Lasocki, Utrecht 1993, Utrecht: STIMU Foundation for Historical Performance Practice, 1995, p. 77-90: 86-87”