Sadowska, K. (2017) “Literature on Children up to Three Years of Age in the 20th Century and Now: the Child in the Context of Nursery Schools, and the Nursery School in the context of Children (Introductory Study)”, Biuletyn Historii Wychowania, (37), pp. 121–132. doi: 10.14746/bhw.2017.37.8.