1. Host plants of powdery mildew fungi collected at the Royal Botanic Gardens, Kew, England, during August and September in 1978;Amano;Trans, mycol. Soc. Japan,1980
2. Die Erysiphaceen Mitteleuropas unter besonderer Berücksichtigung der Schweiz;Blumer;Beitr. Krypt.-Fl. Schweiz,1933
3. Identification of Erysiphaceae by conidial characteristics;Boesewinkel;Rev. Myc.,1977
4. The Morphology of the Imperfect States of Powdery Mildews (Erysiphaceae);Boesewinkel;Bot. Rev.,1980