Kieckhefer, Richard (June 1994). "The Specific Rationality of Medieval Magic". The American Historical Review. 99 (3): 813–818. doi:10.2307/2167771. JSTOR2167771. PMID11639314.
Semple (1998). Semple, Sarah (June 1998). "A fear of the past: The place of the prehistoric burial mound in the ideology of middle and later Anglo-Saxon England". World Archaeology. 30 (1): 109–126. doi:10.1080/00438243.1998.9980400. JSTOR125012.
Kieckhefer, Richard (June 1994). "The Specific Rationality of Medieval Magic". The American Historical Review. 99 (3): 813–818. doi:10.2307/2167771. JSTOR2167771. PMID11639314.
Semple (1998). Semple, Sarah (June 1998). "A fear of the past: The place of the prehistoric burial mound in the ideology of middle and later Anglo-Saxon England". World Archaeology. 30 (1): 109–126. doi:10.1080/00438243.1998.9980400. JSTOR125012.
Kieckhefer, Richard (June 1994). "The Specific Rationality of Medieval Magic". The American Historical Review. 99 (3): 813–818. doi:10.2307/2167771. JSTOR2167771. PMID11639314.
Jolly, Karen Louise (2002). The Middle Ages. Catharina Raudvere, Edward Peters, Bengt Ankarloo, Stuart Clark. Philadelphia: University of Pennsylvania Press. p. 43. ISBN0-8122-3616-5. OCLC49564409.
Jolly, Karen Louise (2002). The Middle Ages. Catharina Raudvere, Edward Peters, Bengt Ankarloo, Stuart Clark. Philadelphia: University of Pennsylvania Press. p. 43. ISBN0-8122-3616-5. OCLC49564409.