References
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- EGNÉR, H., and ERIKSSON, E., 1955, Current data on the chemical composition of air and precipitation. Tenn., 8, pp. 134-139, and subsequent issues.
- JUNGE, C. E., 1963, Air Chemistry and Radioactivity. Academic Press, New York and London.
- MÉSZÁROS, E., 1964, Remarks about chemical methods used in aerosol researches. Tellas, 16, pp. 469–471.
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- WILLIAMS, M. B., and MOSER, J. H., 1953, Colon-metric determination of calcium with ammonium purpurate. Anal. Chem., 25, pp. 1414–1417.