Kelly, A. L., Zwenk, F, Mann, D & Verbeek, J. (2025). The Royal Netherlands Football Association (KNVB) relative age solutions project - part two: An adapted e-Delphi study. Frontiers in Sports and Active Living, 7 , 1565819. Zugriff am 31.07.2025 unter https://doi.org/10.3389/fspor.2025.1565819
APA (7th ed.) CitationKelly, A. L., Zwenk, F., Mann, D., & Verbeek, J. (2025). The Royal Netherlands Football Association (KNVB) relative age solutions project - part two: An adapted e-Delphi study. Frontiers in Sports and Active Living, 7, 1565819.
Chicago Style (17th ed.) CitationKelly, A. L., F. Zwenk, D. Mann, and J. Verbeek. "The Royal Netherlands Football Association (KNVB) Relative Age Solutions Project - Part Two: An Adapted E-Delphi Study." Frontiers in Sports and Active Living 7 (2025): 1565819.
MLA (9th ed.) CitationKelly, A. L., et al. "The Royal Netherlands Football Association (KNVB) Relative Age Solutions Project - Part Two: An Adapted E-Delphi Study." Frontiers in Sports and Active Living, vol. 7, 2025, p. 1565819.