1. Bagnall, R. H. & Bradley, R. H. E., 1958. Resistance to virus Y in the potato. Phytopathology 48: 121–125.
2. Bokx, J. A. de, 1972. Test plants. In: J. A. de Bokx (Ed.), Viruses of potatoes and seed-potato production. Pudoc, Wageningen p. 102–110.
3. Bokx, J. A. de & Piron, P. G. M., 1977. Effect of temperature on symptom expression and relative virus concentration in potato plants infected with potato virus YN and YO. Potato Res. 20:207–213.
4. Gabriel, W., Neitzel, K., Rasocha, V., Wójcik, A. R., Debus, R., Nuckowski, S., Klinkowski, M., 1972. Relations between the incidence of Y and leafroll virus vectors, and infection of potatoes with viral diseases in Central Europe. Ziemniak, p. 27–63.
5. Hille Ris Lambers, D., 1972. Aphids: their life cycles and their role as virus vectors. In: J. A. de Bokx (Ed.), Viruses of potatoes and seed-potato production. Pudoc, Wageningen, p. 36–56.