1. The distribution of lichens in Ireland.;Adams;Proceedings of the Royal Irish Academy, section B: Biological, Geological, and Chemical Science,1909
2. Edvard August Vainio’s types in TUR-V and other herbaria.;Alava;Publications from the Herbarium, University of Turku,1988
3. The lichens of the Faroes.;Alstrup;Fróðskaparrit,1994
4. New or interesting lichens and lichenicolous fungi found during the 5th IAL Symposium in Estonia.;Aptroot;Folia Cryptogamica Estonica,2005
5. Korstmossen in Limburg, voorjarsweekend 1998.;Aptroot;Buxbaumiella,1999