1. Light emisssion from the luminous fungus Collybia velutitpes under different nutritional conditions;Airth;American Journal of Botany,1965
2. Studies on dediploidisation mycelia of the basidiomycete Collybia velutipes;Aschan;Svensk Botanisk Tidskrift,1952
3. The production of fruit bodies in Collybia velutipes I. Influence of different culture conditions;Aschan;Physiologia Plantarum,1954
4. A study of the cellulolytic variation for wild types and mutants of Collybia velutipes. I;Aschan;Physiologia Plantarum,1953
5. Studies on a homothallic mycelium derived from two mutants of Collybia velutipes;Aschan-berg;Svensk Botanisk Tidskrift,1956