Carpenter, Edmund S. (2003): Norse Penny, New York ; se også bokomtale i Bruce Bourques «Twelve Thousand Years: American Indians in Maine» i: American Anthropologist104 (2), s. 670-672; og Prins, Harald E.L.; McBride, Bunny: Asticou's Island Domain: Wabanaki Peoples at Mount Desert Island 1500-2000 (PDF). National Park Service, Ethnographic Overview & Assessment