Józefaciuk G., Muranyi A., Sztanik-Kloc A., Csillag J., Włodarczyk T.:  Changes of water vapor adsorption and variable charge properties of a brown forest soil under acid degradation in laboratory experiment. (1999 r.) Polish Journal of Soil Science 1999, XXXII, 2, 23-33 

Józefaciuk G., Muranyi A., Szatanik-Kloc A., Csillag J., Włodarczyk T.:  Changes of pore system of a brown forest soil under acid degradation in laboratory experiment. (1999 r.) Polish Journal of Soil Science 1999, XXXII, 1, 23-32