TY - JOUR T1 - Language acquisition: hesitations in the question/answer dialogic pair JO - CoDAS A1 - Chacon, Lourenço A1 - Villega, Cristyane de Camargo Sampaio SN - 2317-1782 UL - 10.1590/2317-1782/20152014048 VL - 27 Y1 - 2015 PB - Brazil ER -