@article{709991,
      recid = {709991},
      author = {Jopp, Tobias Alexander.},
      title = {Insurance, fund size, and concentration : Prussian miners'  Knappschaften in the nineteenth-- and early  twentieth-centuries and their quest for optimal scale /},
      pages = {1 online resource (273 pages) :},
      url = {http://library.usi.edu/record/709991},
}