@misc{BoldKimenyiMwabuetal.2013,
  author    = {Tessa Bold and Mwangi Kimenyi and Germano Mwabu and Alice Ng'ang'a and Justin Sandefur},
  title     = {Scaling-up what works : experimental evidence on external validity in Kenyan education},
  booktitle = {Center for global development: Working paper : 321},
  number    = {2013,04},
  url       = {http://www.cgdev.org/sites/default/files/Sandefur-et-al-Scaling-Up-What-Works.pdf},
  institution = {Wirtschaftswissenschaften},
  series    = {Working paper / Center for Global Development},
  number    = {321},
  type      = {workingpaper},
  pages     = {48 S.},
  year        = {2013},
}