Kostrova, Olga, and Izabela Prokop. “Focal Points Still Difficult? Some Reflections on German Grammar for Slavic Native Speakers”. Glottodidactica 47, no. 1 (June 1, 2020): 41–51. Accessed December 9, 2025. https://pressto.amu.edu.pl/index.php/gl/article/view/23262.