@article{GerberKlingelhoeferGronebergetal.2014,
  author    = {Alexander Gerber and Doris Klingelh{\"o}fer and Jan David Alexander Groneberg and Matthias Bundschuh},
  title     = {Silicosis : geographic changes in research ; an analysis employing density-equalizing mapping},
  journal   = {Journal of occupational medicine and toxicology},
  volume    = {9},
  number    = {2},
  doi       = {10.1186/1745-6673-9-2},
  year      = {2014},
}