@inbook{e4d0f22288b3443093aaec7c247dfe07,
title = "Understanding rational numbers-obstacles for learners with and without mathematical learning difficulties",
author = "Andreas Obersteiner and Kristina Reiss and \{Van Dooren\}, Wim and \{Van Hoof\}, Jo",
year = "2019",
month = jan,
day = "30",
doi = "10.1007/978-3-319-97148-3\_34",
language = "English",
isbn = "9783319971476",
pages = "581--594",
booktitle = "International Handbook of Mathematical Learning Difficulties",
publisher = "Springer International Publishing",
}