Liszkowski, U., Carpenter, M., Henning, A., Striano, T., Tomasello M. Twelve-month-olds point to share attention and interest. Developmental Science // Developmental Science. — 2004. — No. 7(3) (13 March). — P. 297—307. — DOI:10.1111/j.1467-7687.2004.00349.x.