@ARTICLE{KamKyrIlo:2003,
  author = {J.-K. Kamarainen and V. Kyrki and J. Ilonen},
  title = {Improving Similarity Measures of Histograms Using Smoothing Projections},
  journal = {Pattern Recognition Letters},
  year = {2003},
  volume = {24},
  pages = {2009--2019},
  number = {12}
}