AUTHOR=Shea Christine E. TITLE=Second language learners and the variable speech signal JOURNAL=Frontiers in Psychology VOLUME=5 YEAR=2014 URL=https://www.frontiersin.org/journals/psychology/articles/10.3389/fpsyg.2014.01338 DOI=10.3389/fpsyg.2014.01338 ISSN=1664-1078