Asbrink, E. et al. 1985. Serologic studies of erythema chronicum migrans Afzelius and acrodermatitis chronica atrophicans with indirect immunofluorescence and enzyme-linked immunosorbent assays. Acta Dermato-Venereologica. 65, 6 (Nov. 1985), 509–514. DOI:https://doi.org/10.2340/0001555565509514.