Szurawitzki, Michael. «Analyzing the Thematic Openings of Linguistic Journal Articles - Developing a Methodology and Examining a Corpus Compiled from the Beiträge zur Geschichte der deutschen Sprache und Literatur». Revista de Filología Alemana, vol. 16, vol. 16, 2008, pp. 249-60, https://revistas.ucm.es/index.php/RFAL/article/view/RFAL0808110249A.