@article{Gutiérrez:63455,
      author        = "Gutiérrez, M. and Tomás, J. M. and Chireac, S. M. and
                       Sancho, P. and Romero, I.",
      title         = "{Measuring School Engagement: Validation and Measurement
                       Equivalence of the Student Engagement Scale on Angolan Male
                       and Female Adolescents}",
      year          = "2016",
}