@inbook{769dc6197c224449a8edc6847a896be5,
title = "Big lines",
keywords = "Wiskunde en Informatica (WIIN), Mathematics, Landbouwwetenschappen, Natuurwetenschappen, Wiskunde: algemeen",
author = "\{van den Heuvel-Panhuizen\}, M.H.A.M. and K. Buys",
year = "2001",
language = "Undefined/Unknown",
publisher = "Freudenthal Institute \& SLO",
pages = "95--99",
editor = "\{van den Heuvel\}, M.H.A.M.",
booktitle = "Children Learn Mathematics. A learning-teaching trajectory with intermediate attainment targets for calculation with whole numbers in Primary School",
}