Z. Brogowski1, H. Siewert2, D. Keplinger2
1Agriculture Univeristy, Department of Soil Environment Science, ul Nowoursynowska 159, 02-776 Warszawa, Poland,
2Department of Natural Resources, Ball State University, Muncie, Indiana, 47306 USA
Pol. J. Environ. Stud. 2005;14(4):517–519