@Article{ 
  Lam11,
  author = { Lamboley, Jimmy },
  title = { About Hölder regularity of the convex shape minimizing $\lambda_2$  },
  journal = { Applicable Analysis },
  year = { 2011 },
  volume = { 90 },
  number = { 2 },
  pages = { 263 - 278 },
  URL = { http://cvgmt.sns.it/paper/3060/ },
  note = { cvgmt preprint}
}