Matuszkiewicz, Jan Marek, Elena Bielonowska, Anna Kowalska, Nadjeżda Cariewska, Jarosław Baranowski, Viera Vinogradowa, Arkadij Tishkov, and Elena Litvinova. 2014. “Białowieża Forest (Ne-Poland) and Valday Np ( Nw-Russia) – Biogeographical Characteristics of Eutrophic Deciduous Forests”. Quaestiones Geographicae 33 (3):111-22. https://doi.org/10.2478/quageo-2014-0034.