1. Bainbridge A 1974 Effect of nitrogen nutrition of the host on barley powdery mildew. Plant Pathol. 23, 160–161.
2. Bergmeyer HU 1974 Methoden der enzymatischen Analyse. Vol. 2, pp 1221–1224. Verlag Chemie, Weinheim.
3. Bettin A 1989 Stickstoffernährung von Gurken — Einfluß auf Stoffwechsel und Ertrag sowie Entwicklung von Echtem Mehltau. Diss. Univ. Hannover.
4. Bushnell WR and Gay J 1978 Accumulation of solutes in relation to the structure and function of haustoria in powdery mildews. In The Powdery Mildews. Ed. DM Spencer, pp 183–235. Academic Press, London.
5. Da Cunha A 1987 The estimation of L-phenylalanine ammonia-lyase shows phenylpropanoid biosynthesis to be regulated by L-phenylalanine supply and availability. Phytochemistry 26, 2723–2727.