@inproceedings{fcf703df4fe248909a3a42411283a011,
title = "Symbolizing data into a 'bump'",
keywords = "Wiskunde en Informatica (WIIN), Mathematics, Landbouwwetenschappen, Natuurwetenschappen, Wiskunde: algemeen",
author = "A. Bakker",
note = "PME 25",
year = "2001",
month = jul,
day = "12",
language = "Undefined/Unknown",
pages = "81--88",
editor = "{van den Heuvel-Panhuizen}, M.",
booktitle = "Proceedings of the 25th conference of the International Group for the Psychology of Mathematics Education (PME)",
publisher = "Freudenthal Institute",
}