@article{learningtosketchhumanfacialportraits,
  title = {Learning to Sketch Human Facial Portraits using Personal Styles by Case-Based Reasoning},
  author = {Bingwen Jin and Songhua Xu and Weidong Geng},
  year = {2016},
  eprint = {1607.02715},
  archivePrefix = {arXiv},
  url = {http://arxiv.org/abs/1607.02715v2},
}