@book{crone1962their,
  address = {London},
  author = {Crone, Gerald R.},
  edition = {2. durchges. Aufl.},
  interhash = {99d8ad72de861840e48d99fec6f5a09f},
  intrahash = {691e4d1262ce2fd07d63fb2a0ad90e76},
  pages = { S. 9-109; 184-192},
  title = {Maps and their Makers. An Introduction to the History of Cartography},
  year = 1962
}