1. Brink EJ., Berg G.J. van den, Meer R. van der, Wolterbeek H.T., Dekker P.R., Beynen A.C. (1992): J. Nutr. 122, 1910-1916
2. Dajioh H., Norii T., Suzuki H. (1997): J. Jap. Soc. Nutr. Food Sci. 50, 119-126
3. Davidsson L., Almgren A., Sandstrom B., Juillerat M.A., Hurrell R.F. (1996): Brit. J. Nutr. 75, 607-613
4. Fukui K.. Kuwata G., Imai M. (1997): J. Jap. Soc. Nutr. Food Sci. 50, 273-278
5. Funaba M., Hashimoto M., Yamanaka C., Shimogori Y., Iriki T., Ohshima S., Abe M. (1996): AJVR 57, 1726-1732
6. Garcia M.N., Martinez-Torres C., Leets I., Tropper E., Ramirez J., Layrisse M. (1996): J. Nutr. Biochem. 7, 49-54
7. Gralak M.A., Leontowicz M., Morawiec M., Bartnikowska E., Kulasek G.W. (1996): Arch. Anim. Nutr. 49, 293 - 299
8. Gralak M.A., Leontowicz H., Leontowicz M., Sciezynska A., Kulasek G.W. (1998a): In: Mengen und Spurenelemente 18. Arbeitstagung. Jena, Germany, 591-596
9. Gralak M.A., Leontowicz H., Leontowicz M., Sciezynska A., Kulasek G.W. (1998b): In: Book of abstracts of 2nd International Conference Trace Elements - Effects on Organisms and Enviroment. Cieszyn, Poland, 123
10. Hansen M., Sandstrom B., Lonnerdal B. (1996): Pediatric Res. 40, 547-552
11. Hunt J.R., Gallagher S.K., Johnson L.A.K., Lykken G.I. (1995): Am. J. Clin. Nutr. 62, 621-632