Chalmers, D. J., Marshall, S. W., Langley, J. D., Evans, M. J., Brunton, C. R., Kelly, A. M., & Pickering, A. F. (1996). Height and surfacing as risk factors for injury in falls from playground equipment: A case-control study.

Chalmers, D. J., S. W. Marshall, J. D. Langley, M. J. Evans, C. R. Brunton, A. M. Kelly, و A. F. Pickering. Height and Surfacing As Risk Factors for Injury in Falls From Playground Equipment: A Case-control Study. 1996.

Chalmers, D. J., et al. Height and Surfacing As Risk Factors for Injury in Falls From Playground Equipment: A Case-control Study. 1996.