Baumgartner, M., E. Jeisy, and C. Berthold. “From Knowledge to Performance in Physical Teacher Education: A Delphi Study and a Pretest for the Content Validation of the Test Instruments”. Swiss Journal of Educational Research, vol. 45, no. 2, Sept. 2023, pp. 151-63, doi:10.24452/sjer.45.2.6.