Boyanov, Angel, Jacqueline Dyballa, Maria Nikolaeva, and Ivan Stoyanov. 2024. “Felix Lobrecht’s Novel „Sonne Und Beton“ in the Context of German As a Foreign Language”. Journal for German and Scandinavian Studies Списание „Германистика и скандинавистика“, no. 4 (December): 218-31. https://periodicals.uni-sofia.bg/index.php/gsc/article/view/3296.