@article {311054,
	title = {Development of social cognition in infant chimpanzees (Pan troglodytes): Face recognition, smiling, gaze, and the lack of triadic interactions1},
	journal = {Japanese Psychological Research},
	volume = {46},
	year = {2004},
	pages = {227{\textendash}235},
	author = {Tomonaga, Masaki and Tanaka, Masayuki and Matsuzawa, Tetsuro and Myowa-Yamakoshi, Masako and Kosugi, Daisuke and Mizuno, Yuu and Okamoto, Sanae and Yamaguchi, Masami K and Bard, Kim A}
}
