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Author Title (up) Year Publication Volume Pages
Kuzniar, A.; Kowalczyk, A.; Kostuch, M. Analysis of criteria for determination of less favored areas in the mountains 2013
Kowalczyk, A.; Twardy, S. Comparison of the water erosion magnitude estimated by the modified USLE methods 2012 Woda Srodowisko Obszary Wiejskie 121 83-92
Smoroń, S.; Kowalczyk, A. Nitrogen and Phosphorus dynamics in the surface flowing waters of the loessial areas in Northern Malopolska 2012 Polish Journal of Environmental Studies 21 392-395
Kowalczyk, A.; Kuźniar, A. The threats of water erosion in the Grajcarek river basin 2012 Polish Journal of Environmental Studies 21 217-221