^J. Keuning, «The van Langren family», Imago Mundi13 1956:101-09; P. van der Krogt, Globi neerlandici: the production of globes in the Low Countries Utrecht 1993.
Michael Friendly, Pedro Valero-Mora, and Joaquín Ibáñez Ulargui, The First (Known) Statistical Graph: Michael Florent van Langren and the Secret of Longitude. The American Statistician, 2010, 64, 185-191.
Johannes Keuning, The Van Langren Family. Imago Mundi 13 (1956) 101-109.
Peter van der Krogt, Globi Neerlandici: The production of globes in the Netherlands (Utrecht, 1993), par. 3.2 Jacob Floris van Langren and his sons, and par. 7.3 Arnold Floris van Langren and his son Michael in Brussels.
O. Van de Vyver S.J., Lunar Maps of the XVIIth Century. Vatican Observatory Publications 1, 2 (Vatican City,