‘County-scale mapping of the invasion stage and invasiveness of major nonnative invasive plants in the Upper Midwest forestlands, USA’ (2018) Mathematical and Computational Forestry & Natural-Resource Sciences (MCFNS), 10(2), σελ. 68–79(12). διαθέσιμο στο: https://tmp.mcfns.com/index.php/Journal/article/view/10.13 (ημερομηνία πρόσβασης: 12 Ιούλιος 2026).