@article{PavlenkoElfimovKoppetal.2007,
  author    = {Natalya Pavlenko and I. Elfimov and Thilo Kopp and G. A. Sawatzky},
  title     = {Interface hole doping in cuprate-titanate superlattices},
  journal   = {Physical Review B},
  volume    = {75},
  number    = {14},
  pages     = {140512(R)},
  doi       = {10.1103/physrevb.75.140512},
  year      = {2007},
}