@inbook{825851711f9f49e7bc88ff07b4eb4954,
title = "Language switching with a group of bilingual students in a mathematics classroom",
author = "Nuria Planas and Nuria Iranzo and Mamokgheti Setati",
year = "2009",
language = "English",
volume = "4",
series = "PME Conference Proceedings",
publisher = "Aristotle University of Thessaloniki",
pages = "393--400",
editor = "M. Tzekaki and M. Kaldrimidou and C. Sakonidis",
booktitle = "Proceedings of the 33rd conference of the International Group for the Psychology of Mathematics Education (PME)",
}