Media type: E-Article Title: Children’s strategies in complex arithmetic Contributor: Lemaire, Patrick; Callies, Sophie Published: Elsevier BV, 2009 Published in: Journal of Experimental Child Psychology, 103 (2009) 1, Seite 49-65 Language: English DOI: 10.1016/j.jecp.2008.09.007 ISSN: 0022-0965 Origination: Footnote: