1. Anon (1985) Disease Assessment Manual for Crop Variety Trials . National Institute of Agricultural Botany, Cambridge, UK.
2. Identification and classification of powdery mildew anamorphs using light and scanning electron microscopy and host range data;Cook R.T.A.;Mycological Research,1997
3. Image analysis – a valuable tool for recording and analysising [analysing] development of mycelial systems;Donnelly D.P.;Mycologist,1999
4. Principles of plant health and quarantine
5. Federation of British Plant Pathologists (1973) A Guide to the Use of Terms in Plant Pathology . Phytopathological Papers No. 17, FBPP [now British Society for Plant Pathology (BSPP)], Reading, UK.