1. Bergier, M. 2010. The occurrence of unreleased oral stops in English voice agreeing plosive clusters straddling word boundaries. Production experiments with Polish advanced learners of English. Unpublished MA thesis. University of Silesia.
2. Bialystok, E. 1982. On the relationship between knowing and using linguistic forms. Applied Linguistics 3: 181–206.
3. Bialystok, E. 1994. Analysis and control in the development of second language proficiency. Studies in Second Language Acquisition 16: 157–168.
4. Bialystok, E. and Ryan, E. 1985. Toward a definition of metalinguistic skill. Merrill-Palmer Quarterly 31: 229–251.
5. Boersma, P. and Weenink, D. 2008. Praat: Doing phonetics by computer. (Version 5.0.30) [Computer program].
http://www.praat.org
. Retrieved from August 2nd 2008.