KardanovaE., IvanovaA., SergomanovP., KanonireT., AntipkinaI., & KaykyD. (2018). Patterns of First-Graders’ Development at the Start of Schooling: Cluster Approach Based on the Results of iPIPS Project. Voprosy Obrazovaniya / Educational Studies Moscow, (1), 8-37. https://doi.org/10.17323/1814-9545-2018-1-8-37