@inbook{54f8b2e52c1d40f180634483c2b9ca88,
title = "Students' constructions: a necessity for formalizations in geometry",
keywords = "Wiskunde en Informatica (WIIN), Mathematics, Landbouwwetenschappen, Natuurwetenschappen, Wiskunde: algemeen",
author = "\{van den Brink\}, F.J.",
year = "2000",
language = "Undefined/Unknown",
publisher = "Falmer Press",
pages = "105--133",
editor = "L. Steffe",
booktitle = "Radical Constructivism in Action: Building on the Pioneering Work of Ernst von Glasersfeld",
}