Lintunen, Pekka, and Mari Mäkilä. “Measuring Syntactic Complexity in Spoken and Written Learner Language: Comparing the Incomparable?”. Research in Language 12, no. 4 (December 30, 2014): 377–399. Accessed January 12, 2026. https://www.czasopisma.uni.lodz.pl/research/article/view/6421.