@article{116616,
  author = {Andres Aradillas-Lopez and Bo E. Honor{\'e} and James L. Powell},
  title = {Pairwise Difference Estimation With Nonparametric Control Variables},
  year = {2007},
  journal = {International Economic Review},
  volume = {48},
  pages = {1119-1158},
  url = {http://dx.doi.org/10.1111/j.1468-2354.2007.00457.x},
  language = {eng},
}