@inbook{f82f5e7a1dc14d6ab7467f147cbeec14,
title = "Teacher students' improvements in calculation and understanding in the case of division",
author = "Jorma Leinonen and Erkki Pehkonen",
year = "2011",
language = "English",
isbn = "978-975-429-262-6",
series = "Proceedings of the 35th conference of the International Group for the Psychology of Mathematics Education : developing mathematical thinking",
publisher = "Orta Dogu Teknik {\"U}niversitesi",
number = "35",
pages = "129--136",
editor = "Behiye Ubuz",
booktitle = "Proceedings of the 35th Conference of the International Group for the Psychology of Mathematics Education. Volume 3 / International Conference for the Psychology of Mathematics Education (35 : 2011 : Ankara)",
address = "Turkey",
}