New York, NY: American Folk-lore Society,. p. 117. Cited by Clarkson in their article, see above. ↑ Jarpers vie for egg-bashing title, BBC News, 13 April 2009, retrieved 13 April 2009 ↑ "Egg tapping elevated to a high art in Acadiana" by Judy Stanford, Daily Advertiser, Lafayette, Louisiana, April 4, 1999 () ↑ "If Your Eggs Are Cracked, Please Step Down: Easter Egg Knocking in Marksville", by Sheri Lane Dunbar, Ph.D. (anthropology), first published in the 1989 Louisiana Folklife Festival booklet 1 2 see Polan, Linda; Aileen Cantwell (1983).