@Article{ 
  CatMaz13,
  author = { Catino, Giovanni and Mazzieri, Lorenzo },
  title = { Connected sum construction for σ_k-Yamabe metrics },
  journal = { J. Geom. Anal. },
  year = { 2013 },
  doi = { 10.1007/s12220-011-9265-1 },
  volume = { 23 },
  number = { 2 },
  pages = { 812-854 },
  URL = { https://gecogedi.dimai.unifi.it/paper/54/ },
  note = { cvgmt preprint}
}