Template:Esslinger & Bratt, 1998
- Esslinger, T.L. & Bratt, C. 1998. The Heterodermia erinacea group in North America, and a remarkable new disjunct distribution. In Glenn, M.G., Harris, R.C., Dirig, R. & Cole, M.S., Lichenographia Thomsoniana: North American Lichenology in Honor of John W. Thomson.: 25–36. RLL List # 171 / Rec.# 5194 – Recent Literature on Lichens Mycotaxon