Doyle, A. I.  (2008).  A manuscript of Petrus Dorlandus of Diest's Viola animae. In J. M.  Luxford (Red.), Studies in Carthusian monasticism in the late Middle Ages (Vol. 14, pp. 155-162). Turnhout: Brepols.

Lotz, E.  (2008).  Secret rooms: private spaces for private prayer in late-medieval Burgundy and the Netherlands. In J. M.  Luxford (Red.), Studies in Carthusian monasticism in the late Middle Ages (Vol. 14, pp. 163-177). Turnhout: Brepols.