@article{NadavanRensburgClaassensetal.2011,
  author    = {Wael M. Nada and Leon van Rensburg and Sarina Claassens and Oswald Blumenstein},
  title     = {Effect of vermicompost on soil and plant properties of coal spoil in the Lusatian Region (Eastern Germany)},
  journal   = {Communications in soil science and plant analysis},
  volume    = {42},
  number    = {16},
  pages     = {1945 -- 1957},
  doi       = {10.1080/00103624.2011.591469},
  year      = {2011},
}