@article {309676,
	title = {Arithmetic in the Chimpanzee Basso in the Frankfurt Zoological Park Together With Remarks to Animal Psychology and an Open Letter to Herr Krall From Karl Marbe: Introduction to Translation},
	journal = {The American Journal of Psychology},
	volume = {124},
	year = {2011},
	pages = {463-488},
	issn = {00029556},
	url = {http://www.jstor.org/stable/10.5406/amerjpsyc.124.4.0463},
	author = {Marbe, K. and Shaw, H. L. and Gardner, R. A.}
}
