@article{Cheng:97478,
      author        = "Cheng, L. and Pohlabeln, H. and Ahrens, W. and Russo, P.
                       and Veidebaum, T. and Hadjigeorgiou, C. and Molnár, D. and
                       Hunsberger, M. and De Henauw, S. and Moreno, L.A. and
                       Hebestreit, A.",
      title         = "{Cross-sectional and longitudinal associations between
                       sleep duration, sleep quality, and bone stiffness in
                       European children and adolescents}",
      year          = "2021",
}