@TECHREPORT{CCVP98,
  author = "J.J. Pardo and F. Cuartero",
  title = "Modelos temporizados y probabilísticos.",
  institution = "Universidad de Castilla-La Mancha",
  year = "1999",
  number = "DIAB-99-01-04",
  file = www.info-ab.uclm.es/sec-ab/Tecrep/diab-99-01-04.ps
}