Rosen (1995, pp. 187–92), originally published in 1967 in Saggi su Galileo Galilei . Rosen is particularly scathing about this and other statements in The Sleepwalkers, which he criticizes as inaccurate. Rosen, Edward. Copernicus and his Successors. London: Hambledon Press. 1995. ISBN 1-85285-071-X.
"To obtain for his nephews [Nicolaus and Andreas] the necessary support [for their studies in Italy], the bishop [Lucas Watzenrode the Younger] procured their election as canons by the chapter of Frauenburg (1497-1498)." "Nicolaus Copernicus (页面存档备份,存于互联网档案馆)" , New Advent (online version of the 1913 Catholic Encyclopedia). Retrieved 9 June 2013.
"To obtain for his nephews [Nicolaus and Andreas] the necessary support [for their studies in Italy], the bishop [Lucas Watzenrode the Younger] procured their election as canons by the chapter of Frauenburg (1497-1498)." "Nicolaus Copernicus (页面存档备份,存于互联网档案馆)" , New Advent (online version of the 1913 Catholic Encyclopedia). Retrieved 9 June 2013.