@Article{ 
  AlBeGhVa13,
  author = { Alonso Rodríguez, Ana and Bertolazzi, Enrico and Ghiloni, Riccardo and Valli, Alberto },
  title = { Construction of a finite element basis of the first de Rham cohomology group and numerical solution of 3D magnetostatic problems },
  journal = { SIAM J. Numer. Anal. },
  year = { 2013 },
  doi = { 10.1137/120890648 },
  volume = { 51 },
  number = { 4 },
  pages = { 2380-2402 },
  URL = { https://gecogedi.dimai.unifi.it/paper/153/ },
  note = { cvgmt preprint}
}