Terrusi, M. 2017. Constellation of early childhood, Gugu’s firmament. A portrait of Augusta Rasponi del Sale (Ravenna 1864-1942), author of picture book. Ricerche di Pedagogia e Didattica. Journal of Theories and Research in Education. 12, 2 (Jan. 2017), 71–88. DOI:https://doi.org/10.6092/issn.1970-2221/7082.