Botelho-Borges, A. de A. and Aiello-Vaisberg, T.M.J. 2011. Development of capacities and spontaneous gesture . Paidéia (Ribeirão Preto). 21, 49 (Aug. 2011), 257–262. DOI:https://doi.org/10.1590/S0103-863X2011000200013.