@article{KozlevcarHumarStrauchetal.2005,
  author    = {Bojan Kozlevcar and M. B. Humar and Peter Strauch and I Leban},
  title     = {Fixation of copper(II) ions in aqueous solution to lignin model compound vanillin in an absence of the nitrogen donor ligands : structural and EPR correlation},
  year      = {2005},
}