Heidari, J., Hasenbring, M. I., Kleinert, J., & Kellmann, M. (2017). Stress-related psychological factors for back pain among athletes: Important topic with scarce evidence. European journal of sport science, 17(3), S. 351-359. doi:10.1080/17461391.2016.1252429

Heidari, Jahan, Monika Ilona Hasenbring, Jens Kleinert, and Michael Kellmann. "Stress-related Psychological Factors for Back Pain Among Athletes: Important Topic With Scarce Evidence." European Journal of Sport Science 17, no. 3 (2017): S. 351-359.

Heidari, Jahan, Monika Ilona Hasenbring, Jens Kleinert, and Michael Kellmann. "Stress-related Psychological Factors for Back Pain Among Athletes: Important Topic With Scarce Evidence." European Journal of Sport Science 17.3 (2017): S. 351-359.