Gawlik, Oskar. „On If and Whether Complement Clauses of ‘See’, ‘Wonder’, and ‘Know’ in Contemporary Spoken Academic American English: A Corpus-Based Study“. Respectus Philologicus, no. 24 (29) (spalio 25, 2013): 131–141. žiūrėta spalio 26, 2025. https://test.zurnalai.vu.lt/respectus-philologicus/article/view/13822.