Peleman, B; Lazzari, A; Budginaite, I; Siarova, H; Hauari, H; Peeters, J; Cameron, CL; (2018) Continuous professional development and ECEC quality: Findings from a European systematic literature review. European Journal of Education , 53 (1) pp. 9-22. 10.1111/ejed.12257.