@book{ BA40966698,
  author    = "International Congress on the Conservation of Industrial Monuments and Kroker, Werner and Deutsches Bergbau-Museum Bochum",
  title     = "Verhandlungen : 3.-9.9.1975 = Transactions",
  publisher = "Deutschen Bergbau-Museum",
  year      = "1978",
  series    = "Veröffentlichungen aus dem Deutschen Bergbau-Museum Bochum",
  number    = "Nr. 13",
  URL       = "http://ci.nii.ac.jp/ncid/BA40966698"
}