2007Artikel/Aufsatz in Zeitschrift
Survey of microfungi on Alnus glutinosa (L.) Gaertn. from Münsterland
In: Communications in agricultural and applied biological sciences, Jg. 72 (2007), Heft 4, S. 849 - 856
2005Artikel/Aufsatz in Zeitschrift
New, rare and remarkable records of microfungi from the Slovakian republic.
In: Communications in Agricultural and Applied Biological Sciences, Jg. 70 (2005), Heft 3, S. 269 - 280
2005Artikel/Aufsatz in Zeitschrift
Surveys of new and rare microfungi in the Düsseltal (North Rhine-Westphalia) - Germany.
In: Communications in Agricultural and Applied Biological Sciences, Jg. 70 (2005), Heft 3, S. 257 - 267
2005Dissertation
Beiträge zur Taxonomie der Gattung Sempervivum L. (Crassulaceae) unter besonderer Berücksichtigung der in Kleinasien vorkommenden Sippen
Duisburg, Essen, 2005
2004Artikel/Aufsatz in Zeitschrift
New, rare or remarkable microfungi in the Italian Alps (Carnic Alps), Part II.
In: Communications in Agricultural and Applied Biological Sciences, Jg. 69 (2004), Heft 4, S. 467 - 477
2004Artikel/Aufsatz in Zeitschrift
New and remarkable microfungi in North Rhine Westphalia, Germany.
In: Communications in Agricultural and Applied Biological Sciences, Jg. 69 (2004), Heft 4, S. 489 - 498
2004Artikel/Aufsatz in Zeitschrift
New, rare or remarkable microfungi in the Italian Alps (Carnic Alps), Part I.
In: Communications in Agricultural and Applied Biological Sciences, Jg. 69 (2004), Heft 4, S. 457 - 466
2004Artikel/Aufsatz in Zeitschrift
Seminatural ancient forest in urban agglomeration area “Ruhrgebiet”
In: Acta Biologica Benrodis (2004), Heft 13, S. 91 - 104
2003Artikel/Aufsatz in Zeitschrift
New, rare and remarkable microfungi from Macedonia (Greece).
In: Communications in Agricultural and Applied Biological Sciences, Jg. 68 (2003), Heft 4b, S. 645 - 658
2003Artikel/Aufsatz in Zeitschrift
Second report of microfungi in Eastern Westphalia.
In: Communications in Agricultural and Applied Biological Sciences, Jg. 68 (2003), Heft 4b, S. 631 - 644