“Changes in species diversity and threats to the avifauna of river valleys of the Kuyavian-Pomeranian Voivodeship, comprising part of the international waterway E-70 ” (2013) Geography and Tourism, 1(1), pp. 101–108. Available at: https://czasopisma.ukw.edu.pl/index.php/gat/article/view/20 (Accessed: 13 November 2024).