@article{Soler:70991,
      author        = "Soler, R. and Soler, J.R. and Araya, I.",
      title         = "{Diagnosis of educational needs for the implementation of
                       blended courses based on the blended learning model. The
                       case of the Social Sciences Faculty of the National
                       University of Costa Rica}",
      year          = "2017",
}