Sandseter E B H. (2007). Categorising risky play—how can we identify risk-taking in children's play? [J]. European Early Childhood Education Research Journal.

Sandseter E B H. (2009). Characteristics of risky play[J].Journal of Adventure Education & Outdoor Learning.

Sandseter, E. B. H., Kleppe.R. & Kennair, L. E. O.(2022).Risky play in children's emotion regulation, social functioning, and physical health: an evolutionary approach[J]. International Journal of Play,12(1),135.

Sandseter, E. B. H., & Kennair, L. E. O. (2011). Children's risky play from an evolutionary perspective: The anti-phobic effects of thrilling experiences[J]. Evolutionary Psychology, 9(2), 257-284.

Little, H., & Wyver, S. (2010). Individual differences in children's risk perception and appraisals in outdoor playenvironments[J].International Journal of Early Years Education, 18(4), 297-313.

Patricia Obee & Sandseter, E. B. H.,(2020).Lessons Learned from Norway on Risky Play in Early Childhood Education and Care (ECEC)[J].Early Childhood Education Journal.5(18).

Gibson, J. J. (1979). The ecological approach to visual perception[M]. Boston: Houghton-Mifin.56-60.

Sandseter, E. B. H.(2009)Risky play and risk management in Norwegain preschools-a qualitative observational study[J].Safety Science Monitor,13(1):112.

Sandseter, E. B. H. & BEEFY T H . (2013).Nordic in nature:friluftsliv and environmental connectedness[J].Environmental Education Research,19(1):94-117.

Beck, U. (1992). Risk society: Towards a new modernity [J]. New York: Sage. 17.

Anglin, J. P. (2002). Risk, well-being, and paramountcy in child protection: The need for transformation[J]. Child and Youth Care Forum, 31(4): 233-255.

Giddens, A. (1999). Risky and responsibility[J].The Modern Law Review, 62(1): 1-10.

Gibson, J. J. (1979). The ecological approach to visual perception [M].Boston: Houghton-Mifin.119.