@article{SiebertKummuPorkkaetal.2015,
  author    = {Stefan Siebert and Matti Kummu and Miina Porkka and Petra D{\"o}ll and Navin Ramankutty and Bridget R. Scanlon},
  title     = {A global data set of the extent of irrigated land from 1900 to 2005},
  journal   = {Hydrology and earth system sciences},
  volume    = {19},
  pages     = {1521 -- 1545},
  doi       = {10.5194/hess-19-1521-2015},
  year      = {2015},
}