@inbook {310948,
	title = {Incipient mirror self-recognition in zoo gorillas and chimpanzees},
	booktitle = {Self-awareness in animals and humans},
	year = {1994},
	issn = {9780521025911},
	doi = {http://dx.doi.org/10.1017/CBO9780511565526.021},
	author = {Parker, S. T.}
}
