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Bibliotheca Lichenologica: Volume 068: Türk, Roman and Roberto Zorer (eds.): Progress and Problems in Lichenology in the Nineties. Proceedgs. of the Third Symposium of the International Association for Lichenology (IAL3), held at the University of Salzburg, Salzburg, Austria, on 1.-7. September 1996. Publ. 1997. illus. 252 p. gr8vo. (70549) 77.00
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