Feature versus spatial strategies by orangutans (Pongo abelii) and human children (Homo sapiens) in a cross-dimensional task
Journal of Comparative Psychology (2013) - Comment
pubmed: 23106800  doi: 10.1037/a0030591  issn: 1939-2087  issn: 0735-7036 

Heidi L. Marsh, Laura Adams, Catherine Floyd, Suzanne E. MacDonald