Leah Tether, The Continuations of Chrétien's Perceval: content and construction, extension and ending, Arthurian studies, LXXIX, Woodbridge, U.K. Rochester, NY, D.S. Brewer, 2012

The idea of continuation in medieval literature is a familiar one - but difficult to define precisely. Despite the existence of important texts which are commonly referred to as continuations, such as Le Roman de la Rose , Le Chevalier de la Charrette and, of course, the Perceval Continuations , the mechanics and processes involved in actually producing a continuation have found themselves indistinguishable from those associated with other forms of medieval réécriture . The Perceval Continuations (composed c.1200-1230) constitute a vast body of material which incorporates four separately-authored continuations Recension par Matilda Tomaryn Bruckner in Medium Aevum 82 (2013), pp. 344-345