@TECHREPORT{biltoki:200402,
  title = {Estacionalidad Determinista y Estoc\'astica en Series Temporales Macroecon\'omicas},
  author = {L\'opez-de-Lacalle, Javier and D\'iaz-Emparanza, Ignacio},
  year = {2004},
  institution = {Universidad del Pa\'is Vasco - Departamento de Econom\'ia Aplicada III (Econometr\'ia y Estad\'istica)},
  type = {BILTOKI Working Paper},
  number = {2004-02},
  url = {https://addi.ehu.eus/handle/10810/5684}
}