1. Epstein, E.: Mineral nutrition of plants: Principles and perspectives. London-New York-Toronto: Wiley 1972
2. Flowers, T.J.: Halophytes. In: Ion transport in plant cells and tissues, pp. 309?334. Baker, D.A., Hall, J.L., eds.. Amsterdam: North-Holland 1975
3. Greenway, H.: Salinity, plant growth and metabolism. J. Aust. Inst. Agric. Sci. 39, 24?34 (1973)
4. Gullasch, J., Kaufmann, R.: Energy dispersive X-ray microanalysis in soft biological tissue: relevance and reproducibility of the results as depending upon specimen preparation (air drying, cryofixation, cool-stage techniques). In: Microprobe analysis as applied to cells and tissues, pp. 175?190 Hall, T., Echlin, P., Kaufman, R., eds. London-New York: Academic Press 1974
5. Jacoby, B.: Sodium retention in excised bean stems. Physiol. Plant. 18, 730?739 (1965)