@InProceedings{SCI:Ere2011c,
  author =    "B. Erem and D.H. Brooks",
  title =     "Differential Geometric Approximation of the
              Gradient and Hessian on a Triangulated Manifold",
  booktitle = "Proceeding of the {IEEE} International Symposium
              on Biomedical Imaging: from nano to macro",
  pages =     "504--507",
  year =      "2011",
  doi =       "10.1109/ISBI.2011.5872455",
  pmid =      "21712967",
  pmcid =     "PMC3122924",
  url =       "http://www.sci.utah.edu/publications/Ere2011c/Erem_ISBI2011.pdf",
}