Gozdawa-Gołębiowski, R. i Opacki, M. 2018. Recurrent strings in corpus-based pedagogical research: A reappraisal of the field. Glottodidactica. 45, 2 (grudz. 2018), 134–149. DOI:https://doi.org/10.14746/gl.2018.45.2.07.