1. Andel, O. M. van, —1958. Investigations on plant chemotherapy 2. Influence of amino acids on the relation plant-pathogen. Tijdschr. PlZiekt. 64: 307–327
2. Behr, L., —1949. Histologische Untersuchungen an Krätzekranken Gurken ((Cucumis sativus L.) unter besonderer Berücksichtigung, des Krankheitsverlaufes der Krätze (Cladosporium cucumerinum Ell. et Arth.) an Früchten. Phytopath. Z. 15: 92–123.
3. Butler, E. J. & S. G. Jones, —1955. Plant Pathology. London.
4. El-din-Fouad, M. K., —1956. Studies on genetic and on chemically induced resistance of cucumber tissues to Cladosporium cucumerinum. Meded. LandbHogesch., Wageningen 56: 1–55.
5. Keyworth, W. A. &A. E. Dimond, —1952., Root injury as a factor in the assessment of chemotherapeutants. Phytopathology 42: 311–316.