@Book{PITR2013:2013,
  editor    = {Sandra Williams  and  Advaith Siddharthan  and  Ani Nenkova},
  title     = {Proceedings of the Second Workshop on Predicting and Improving Text Readability for Target Reader Populations},
  month     = {August},
  year      = {2013},
  address   = {Sofia, Bulgaria},
  publisher = {Association for Computational Linguistics},
  url       = {http://www.aclweb.org/anthology/W13-29}
}