Neff, JoAnne, Caroline Bunce, Emma Dafouz, Javier Gallego, Juan Pedro Rica, Marta Genis, ir Anne McCabe. „The Question of Descriptors for Academic Writing in European Language Framework: A Critical View“. Kalbotyra 59 (sausio 1, 2008): 213–221. žiūrėta lapkričio 7, 2025. https://www.zurnalai.vu.lt/kalbotyra/article/view/7609.