Augustyniuk-Kram, A., K. J. Kram, and K. Ilieva-Makulec. “The Assessment of Soil Biological Activity and Physico-Chemical Parameters in the First Stage of Restoration of Xerothermic Grassland Habitats on the Dune of Łużowa Góra in the Kampinos National Park: Preliminary Studies”. Studia Ecologiae Et Bioethicae, vol. 17, no. 3, Sept. 2019, pp. 63-73, doi:10.21697/seb.2019.17.3.07.