Middeke, Annegret. “Circular Migration and Language Skills in German: A Multilingual Self-Learning Portfolio for Live-in Carers”. Journal for German and Scandinavian Studies / Списание „Германистика и скандинавистика“ 1 (December 31, 2025): 426–442. Accessed March 27, 2026. https://periodicals.uni-sofia.bg/index.php/gsc/article/view/3240.