@book{b9a8d6cf706240aa8524448af295281c,
title = "Current research on mathematics and science education: Proceedings of the XXI Annual Symposium of the Finnish Association of Mathematics and Science Education Research",
keywords = "516 Kasvatustieteet",
author = "Anu Laine and Jari Lavonen and Veijo Meisalo",
year = "2004",
language = "suomi",
isbn = "952-10-1986-7",
series = "Helsingin yliopiston soveltavan kasvatustieteen laitos / Tutkimuksia - Research report",
publisher = "University of Helsinki",
number = "253",
address = "Suomi",
}