Asbrink, E, et al. “Serologic Studies of Erythema Chronicum Migrans Afzelius and Acrodermatitis Chronica Atrophicans With Indirect Immunofluorescence and Enzyme-Linked Immunosorbent Assays”. Acta Dermato-Venereologica, vol. 65, no. 6, Nov. 1985, pp. 509-14, doi:10.2340/0001555565509514.