@incollection{UBHD-68680284, author={Stewart, John}, title={Is there a fundamental difference?}, subtitle={the availability of universal grammar in child versus adult second language acquisition}, year={2003}, pages={? S.}, language={eng}, isbn={1574734016}, booktitle={Proceedings of the 6th Generative Approaches to Second Language Acquisition Conference (GASLA 2002)}, editor={Liceras, Juana M. and Goodluck, Helen and Zobl, Helmut}, }