Bunio-Mroczek P, Grotowska-Leder J, editors. Investing in children innovative solutions to improve children’s well-being. Introduction. In: Investing in Children. Innovative Solutions to Improve Children’s Well-Being [Internet]. Poland: Lodz University Press; 2018 [cited 2026 Feb. 11]. pp. 7-11. Available from: https://www.press.uni.lodz.pl/index.php/wul/catalog/book/1196/chapter/3322