• Lynam, C.P., Halliday, N.C., Höffle, H., Wright, P.J., van Damme, C.J.G., Edwards, M., & Pitois, S. (2013) "Spatial patterns and trends in abundance of larval sandeels in the North Sea: 1950-2005" ICES Journal of Marine Science 70: 540-553
  • Österblom, H., Casini, M., Olsson, O. & Bignert, A. (2006) "Fish, seabirds and trophic cascades in the Baltic Sea" Mar Ecol Prog Ser 323: 233–238