1. The Cladonia gorgonina group and C. gigantea in East Africa;Ahti;Lichenologist,1977
2. Echidnocymbium (Biatoraceae), a new lichen genus from southern Africa;Brusse;Mycotaxon,1987
3. Investigations on carotenoids in fungi. V. Representatives of the Leccinum genus;Czeczuga;Qual. Plant. — Pl. Fds. Natur.,1978
4. Investigations on carotenoids in fungi. VI. Representatives of the Helvellaceae and Morchellaceae;Czeczuga;Phyton (Austria),1979
5. Characteristic carotenoids in algae of different systematic position;Czeczuga;Nova Hedwigia,1979