1. Banks, W., Greenwood, C. T., Muir, D. D.: The characterization of starch and its components. - Part 2. The semi-micro estimation of the starch - content of cereal grains and related materials. - Stärke22: 105–108, 1970.
2. Gašparíková, O.: Auxin content and its catabolism in the roots ofPisum sativum L. - Biológia (Bratislava)25: 11–17, 1970.
3. Heller, R.: Recherches sur la nutrition minérale des tissus végétaux cultivésin vitro. - Ann. Sci. nat. Bot. vég.14: 1–223, 1953.
4. Kende, H.: Kinetin-like factors in the root exudate of sunflowers. - Proc. nat. Acad. Sci. U.S.A.53: 1302–1307, 1965.
5. Luštinec, J., Hadačová, V., Kamínek, M., Benes, K., Opatrná, J., Horák, J.: Control of growth and differentiation processes inBrassica oleracea andNicotiana tabacum stem pith expiants by kinetin and auxins. - Int. Conf. On Natural Plant Growth Substances. Liblice, Czechoslovakia. Pp. 71–72. 1972.