SCHAUFFLER, David. "Abendland": Henry Wadsworth Longfellow i świadomość ekopoetycka. Er(r)go. Teoria - Literatura - Kultura, [S. l.], n. 28, 2014. Disponível em: https://trrest.vot.pl/ojsus/index.php/ERRGO/article/view/2638. Acesso em: 6 maj. 2025.