@Misc{ 
  JevWeiWen16,
  author = { Jevnikar, Aleks and Wei, Juncheng and Wen, Yang },
  title = { On the Topological degree of the Mean field equation with two parameters },
  journal = { Indiana Univ. Math. J. },
  year = { 2016 },
  pages = {  },
  URL = { http://cvgmt.sns.it/paper/2940/ },
  note = { cvgmt preprint}
}