@inbook{585c05061509463797fee2a048d1a5a6,
title = "The design of open-open assessment tasks",
keywords = "Wiskunde en Informatica (WIIN), Mathematics, Landbouwwetenschappen, Natuurwetenschappen, Wiskunde: algemeen",
author = "E.J.G. Feijs and {de Lange}, J.",
year = "2004",
language = "Undefined/Unknown",
isbn = "0-8077-4481-6",
publisher = "Teachers College Press, Colombia University",
pages = "122--136",
editor = "T.A. Romberg",
booktitle = "Standards-based Mathematics Assessment in Middle School. Rethinking classroom practice",
}