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Daron Burrows William Rothwell (gen. ed.); Stewart Gregory and David Trotter (eds), with the assistance of Michael Beddow, Virgine Derrien, Geert de Wilde, Lisa Jefferson and Andrew Rothwell, Anglo-Norman Dictionary: Second Edition, Vol. I: A–C; Vol. II: D–E (I— II) 76.1 (2007), 146-148 DOI:10.2307/43632321
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