@article{7e5d10be07394050ad97c857984616b8,
title = "Young children's understanding and application of subtraction-related principles",
author = "Baroody, {Arthur J.} and Joke Torbeyns and Lieven Verschaffel",
note = "Funding Information: Preparation of this article was supported, in part, by a grant from the National Science Foundation (BCS-0111829) and the Spencer Foundation (200400033). The opinions expressed are solely those of the authors and do not necessarily reflect the position, policy, or endorsement of the National Science Foundation or the Spencer Foundation.",
year = "2009",
month = jan,
doi = "10.1080/10986060802583873",
language = "English (US)",
volume = "11",
pages = "2--9",
journal = "Mathematical Thinking and Learning",
issn = "1098-6065",
publisher = "Routledge",
number = "1-2",
}