@article{ShahabfarEitzinger2013,
  author    = {Alireza Shahabfar and Josef Eitzinger},
  title     = {Spatio-Temporal Analysis of Droughts in Semi-Arid Regions by Using Meteorological Drought Indices},
  journal   = {Atmosphere},
  volume    = {4},
  number    = {2},
  doi       = {10.3390/atmos4020094},
  year      = {2013},
}