@article{JeschkeShenValenti2015,
  author    = {Harald O. Jeschke and Juan Shen and Roser Valent{\´i}},
  title     = {Localized versus itinerant states created by multiple oxygen vacancies in SrTiO3},
  journal   = {New Journal of Physics},
  volume    = {17},
  number    = {023034},
  doi       = {10.1088/1367-2630/17/2/023034},
  year      = {2015},
}