TARKOWSKÁ, D., DOLEŽAL, K., TARKOWSKI, P., ASTOT, C., HOLUB, J., FUKSOVÁ, K., SCHMÜLLING, T., SANDBERG, G., STRNAD, M. Identification of new aromatic cytokinins in Arabidopsis thaliana and Populus x canadensis leaves by LC-(+)ESI-MS and capillary liquid chromatography/frit-fast atom bombardment mass spectrometry. Physiologia Plantarum. 2003, 117(4), 579-590. ISSN 0031-9317. E-ISSN 1399-3054.