@conference{aa695af5ec854b86bdc88ce652598b88,
title = "Finding instructive characteristics of picture books that support the learning of mathematics",
keywords = "Mathematics, Landbouwwetenschappen, Natuurwetenschappen, Wiskunde: algemeen",
author = "{van den Boogaard}, S.A.A. and {van den Heuvel-Panhuizen}, M.H.A.M",
note = "Poster presented at the 30th Conference of the International Group for the Psychology of Mathematics Education (PME); Poster presented at the 30th Conference of the International Group for the Psychology of Mathematics Education (PME) ; Conference date: 16-07-2006 Through 21-07-2006",
year = "2006",
month = jul,
day = "16",
language = "Undefined/Unknown",
}