1. Key, J. L.: Studies on 2,4-D-induced changes in RNA metabolism in excised corn mesocotyl.— Weeds11: 177–181, 1963.
2. Key, J. L., Hanson, J. B., Bils, R. F.: Effect of 2,4-dichlorophenoxyacetic acid application on activity and composition of mitochondria from soy beans.—Plant Physiol.35: 177–183, 1960.
3. Schuster, G.: Zum Problem der selektiven Abtätung viruskranker Pflanzen durch Chemikalien. —Zesz. probl. Postepów Nauk roln.111: 183–196, 1970.
4. Schuster, G.: Influence of herbicides and other plant-protecting agents on virus symptoms.— Dresden Inst. Tabakforsch. Ber.19: 14–21, 1972.
5. Schuster, G.: Effect of herbicides of the urea and carbamate type and chemicals for sucker control on virus infected tobacco plants.—Dresden Inst. Tabakforsch. Ber.20: 25–37, 1973.