M. Papousšek and H. Papousšek, “Forms and functions of vocal matching in interactions between mothers and their pre canonical infants,” First Lang., vol. 9, pp. 137–157, 1989.
http://fla.sagepub.com/content/9/6/137.full.pdf+html
M. Papousšek and H. Papousšek, “Forms and functions of vocal matching in interactions between mothers and their pre canonical infants,” First Lang., vol. 9, pp. 137–157, 1989.
http://fla.sagepub.com/content/9/6/137.full.pdf+html