@inproceedings{productsparsecoding,
  title = {Product Sparse Coding},
  author = {Tiezheng Ge and Kaiming He and Jian Sun},
  year = {2014},
  booktitle = {CVPR 2014 6},
  url = {http://openaccess.thecvf.com/content_cvpr_2014/html/Ge_Product_Sparse_Coding_2014_CVPR_paper.html},
}