Callegari, C. “Reasons for the Research on The Construction of the Sense of Espace vécu in European children’s Literature in the Second Half of the 20th Century (1945-2010). An International Historical and Comparative Survey on Picturebooks: Goals, Method, Tools, and Preliminary Results”. Ricerche Di Pedagogia E Didattica. Journal of Theories and Research in Education, vol. 14, no. 2, Jan. 2019, pp. 203-36, doi:10.6092/issn.1970-2221/10037.