Dobrev, P., Motyka, V., Gaudinová, A., Malbeck, J., Trávníčková, A., Kamínek, M., Vaňková, R. Transient accumulation of cis- and trans-zeatin type cytokinins and its relation to cytokinin oxidase activity during cell cycle of synchronized tobacco BY-2 cells. Plant Physiology and Biochemistry. 2002, 40(-), 333-337. ISSN 0981-9428. E-ISSN 1873-2690.