References
- Ng , A. and Patterson , C. 1981 . Geochim. Cosmochim. Acta , 45 : 2109 – 2121 .
- Forstner , U. 1984 . Changing Metal Cycles and Human Health , Edited by: Nriagu , J. O. and Dahlem Konferenzrn . 71 – 94 . Heidelberg : Springer Verlag .
- Nikiforova , F. M. and Smirnova , R. S. 1975 . Acta of International Conference on Heavy Metals in the Environment . Toronto , C. : 94 – 96 .
- Forstner , U. 1986 . The Importance of Chemical Speciation in Environmental Processes , Edited by: Bernhard , M. , Brinckman , F. E. and Sadler , P. J. 465 – 491 . Heidelberg : Springer Verlag .
- Hargitai , L. 1989 . Sci. Total Environ. , 81/82 : 643/651
- Hargitai , L. 1988 . Proceedings of International Symposium on Humus et Planta , 78 Prague : CSVTS ed. .
- Hargitai , L. 1990 . Transactions of the 14th International Congress of Soil Science , Vol. II , 102 – 107 . Kyoto : Comm. II .
- Hargitai , L. 1981 . Publ. Univ. Horticult. Budapest , 45 : 113 – 118 .
- Hargitai , L. 1955 . òsszehasonlitò szervesanyag-vizsgálatok kÜlÖnbÖzo talajtipusokon optikai mÓdszerekkel (Vergleichende Humusuntersuchungen in verschiedenen Bodentypen mit optischen Methoden) . Agártud. Egy. Agron. Kar Kiadv. , 2 ( #10 ) : 1 – 27 .
- Tyurin , I. V. 1937 . Organicseszkoje Vescsesztvo Pocvsy , Moscow : Seljhozgiz .
- Hargitai , L. 1983 . Publ. Univ. Horticult. Budapest , 47 : 139 – 145 .
- Hargitai , L. 1987 . in Humic Substances and their Role in The Environment , Edited by: Frimmel , H. , Christman , R. and Dahlem Konferenzen . 245 – 256 . New York : John Wiley .
- Lakanen , E. and Ervio , R. 1971 . Acta Agr. Fennica , 123 : 223 – 232 .
- Hargitai , L. 1982 . Transactions of the 12th Int. Congr. of Soil Science (Abstracts of Papers) 31 New-Delhi
- Asami , T. 1984 . Changing Metal Cycles and Human Health , Edited by: Nriagu , J. O. and Dahlem Konferenzen . 95 – 111 . Heidelberg : Springer Verlag .
- Kloke , A. , Sauerbeck , P. L. and Vetter , H. 1984 . Changing Metal Cycles and Human Health , Edited by: Nriagu , J. O. and Dahlem Konferenzen . 113 – 141 . Heidelberg : Springer Verlag .