It is a relatively uncontroversial assumption in studies ...

Bilingualism: Language and Cognition. Tsimpli, Ianthi.-M., Antonella Sorace, Caroline Heycock, & Francesca Filiaci. In press. “First Language Attrition and Syntactic Subjects: A Study of Greek and Italian Near-Native Speakers of English.” International Journal of Bilingualism. Vainikka, Anne, & Martha Young-Scholten. 1998. ................
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