@Article{ 
  MucNic15,
  author = { Mucci, Domenico and Nicolodi, Lorenzo },
  title = { On the Landau-de Gennes elastic energy of constrained biaxial nematics },
  journal = { SIAM J. Math. Anal. },
  year = { 2015 },
  doi = { 10.1137/15M1041043 },
  volume = { 48 },
  number = { 3 },
  pages = { 1954-1987 },
  URL = { http://cvgmt.sns.it/paper/2925/ },
  note = { cvgmt preprint}
}