@Article{bertholdsson2016evolutionary,
  author = {Bertholdsson, N.O. and Weedon, O. and Brumlop, S. and Finckh, M.R.},
  title  = {Evolutionary changes of weed competitive traits in winter wheat composite cross populations in organic and conventional farming systems},
  journal = {European Journal of Agronomy},
  year   = {2016},
  number = {},
  url    = {},

  const  = {\ text}
}