Ulrich, Silvia. “Werther’s Lament for the Walnut Trees: From Alchemy to Literature to Ecocriticism”. RiCOGNIZIONI. Rivista di Lingue e Letterature straniere e Culture moderne 7, no. 14 (December 29, 2020): 175–186. Accessed February 8, 2025. https://ojsunito33.archicoop.it/index.php/ricognizioni/article/view/5418.