Scopesi, Alda Maria, Anna Maria Rosso, Paola Viterbori, and Erika Panchieri. 2014. “Mental Vocabulary and Markers of Uncertainty in Childhood and Preadolescence”. Ricerche Di Pedagogia E Didattica. Journal of Theories and Research in Education 9 (1):97-113. https://doi.org/10.6092/issn.1970-2221/4293.