Ratyńska, H., M. Grodzki, B. Waldon, i E. Wachowiak. „Introduction of Alien Tree Species and Its Influence on Floristical Composition and Vegetation Structure of Acidophilous Oak Forests: The Experimental Plots in the Zielonka Forest”. Acta Universitatis Lodziensis. Folia Biologica Et Oecologica, t. 7, grudzień 2011, s. 177-90, doi:10.2478/v10107-009-0024-z.