1. Babbkr, D. A., Koontz, H. V.: Uptake of DNP and its effect on transpiration and caloium accumulation in barley seedlings. - Plant Physiol.38: 60–65, 1963.
2. Biddulph, S. F.: Microautoradiographic study of Ca45 and S35 distribution in the intact bean roots. - Planta74: 350–367, 1967.
3. Clabkson, D. T., Sandebson, J.: Relationship between the anatomy of cereal roots ana the absorption of nutrients and water. - Agricultural Research Council Letcombe Laboratory Annual Report, 1970.
4. Cseh, E.: [The exchange of45Ca and82Br ions and their translocation in uniformly labelled intact plantlets of winter wheat.] In Hung. - Bot. Közl.57: 97–99, 1970.
5. Dvo£ák, M.: Influence of minerál nutrients on respiration ofCucurbita plant roots. - Acta Univ. Carol. - Biol.1: 65–86, 1960.