“Life-Reformation Movements at the Beginning of the 20th Century and the Puppet World of the Third Cycle of Reformation Pedagogy: The Käthe Kruse and Waldorf Puppets”. Training and Practice : Journal of Educational Sciences, vol. 13, no. 1-2, June 2015, pp. 349-57, https://doi.org/10.17165/TP.2015.1-2.24.