1. Darlington, C. D. andLa Cour, L. F., The handling of chromosomes. Second edition. London, George Allen and Unwin Ltd. 1947.
2. Dermen, H., Colchicine polyploidy and technique. Bot. Review6 (1940): 599–635.
3. Dillewijn, C. van, Some technical remarks about the colchicine treatment ofGramineae. Proc. Kon. Acad. van Wetenschappen44 (1941): 1118–1120.
4. Györffy, B., Die Colchizinmethode zur Erzeugung polyploider Pflanzen. Der Züchter12 (1940): 139–149.
5. Tjio, J. H. andLevan, A., The use of oxiquinoline in chromosome analysis. Anales de la Estacion Experimental de Aula Dei2 (1950): 21–62.