@article{773411,
      author = {Epstein, Charles L. and Mazzeo, Rafe.},
      url = {http://library.usi.edu/record/773411},
      title = {Degenerate diffusion operators arising in population  biology [electronic resource] /},
      publisher = {Princeton University Press,},
      recid = {773411},
      pages = {xiii, 306 p.},
      address = {Princeton :},
      year = {2013},
}