Ugé K. Relics as tools of power: the eleventh-century inventio of St Bertin's relics and the assertion of Abbot Bovo's authority. In: Bijsterveld AJA, Theunis HB, Wareham A, editors. Negotiating secular and ecclesiastical power. Western Europe in the Central Middle Ages. Vol 6. Turnhout: Brepols; 1999. p. 51-71. (International Medieval Research; vol 6).