@inbook{d334bcad163c4f4da92d87f8df723e64,
title = "Students overcoming blockages while building a mathematical model; exploring a framework",
author = "S. Schaap and Pauline Vos and Martin Goedhart",
year = "2011",
language = "English",
isbn = "9789400709102",
series = "International perspectives on the teaching and learning of mathematical modelling",
publisher = "Springer",
pages = "137--146",
editor = "G. Kaiser and W. Blum and {Borromeo Ferri}, R. and G. Stillman",
booktitle = "Trends in teaching and learning of mathematical modelling",
}