@article{AtienzadeCastroCortesetal.2012,
  author    = {Nieves Atienza and Natalia de Castro and Carmen Cort{\´e}s and M. {\´A}ngeles Garrido and Clara I. Grima and Gregorio Hern{\´a}ndez and Alberto M{\´a}rquez and Auxiliadora Moreno-Gonz{\´a}lez and Martin N{\"o}llenburg and Jos{\´e} Ram{\´o}n Portillo and Pedro Reyes and Jes{\´u}s Valenzuela and Maria Trinidad Villar and Alexander Wolff},
  title     = {Cover contact graphs},
  year      = {2012},
}