@Article{ 
  Lu11b,
  author = { Lu, Xin Yang },
  title = { Geometric and topological properties of exponent related dynamic evolution },
  journal = { Commun. Math. Anal. },
  year = { 2012 },
  volume = { 12 },
  number = { 2 },
  pages = { 106-123 },
  URL = { http://cvgmt.sns.it/paper/1702/ },
  note = { cvgmt preprint}
}