@article{GB2011,
  title = "Dual formulations of mixed finite element methods with applications",
  journal = "Computer-Aided Design",
  volume = "43",
  number = "10",
  pages = "1213 - 1221",
  year = "2011",
  issn = "0010-4485",
  doi = "10.1016/j.cad.2011.06.017",
  url = "http://www.sciencedirect.com/science/article/pii/S001044851100159X",
  author = "Andrew Gillette and Chandrajit Bajaj",
}