Kiedrzyński, Marcin, et al. “Transformation of Forest Vegetation After 40 Years of Protection in the Tomczyce Nature Reserve (Central Poland)”. Acta Universitatis Lodziensis. Folia Biologica Et Oecologica, vol. 7, Dec. 2011, pp. 207-2, doi:10.2478/v10107-009-0026-x.