an Entity references as follows:
Hefford, Wendy, 'Some problems concerning the Art of War tapestries' in CIETA Bulletin no. 41-41 (1975) pp.105-116. Wace, Alan, The Marlborough Tapestries at Blenheim Palace (Phaidon, 1968) Ackerman, Phyllis Five tapestries in the collection of Margraf & Company...from the collection of the King of Saxony (n.d., ca. 1926)