@Article{grady2009piecewise,
  author =	 {Leo Grady and Christopher Alvino},
  title =	 {The Piecewise Smooth {M}umford-{S}hah Functional on
                  an Arbitrary Graph},
  journal =	 {IEEE Trans. on Image Proc.},
  year =	 2009,
  volume =	 18,
  number =	 11,
  pages =	 {2547--2561},
  month =	 {Nov.}
}