@article{HeistermannFranckeGeorgietal.2014,
  author    = {Maik Heistermann and Till Francke and Christof Georgi and Axel Bronstert},
  title     = {Increasing life expectancy of water resources literature},
  journal   = {Water resources research},
  volume    = {50},
  number    = {6},
  pages     = {5019 -- 5028},
  doi       = {10.1002/2014WR015674},
  year      = {2014},
}