@TechReport{AldDaneTR0603,
      AUTHOR = {Aldinucci, Marco and Danelutto, Marco},
      TITLE = {The cost of security in skeletal systems},
      YEAR = {2006},
      MONTH = {February},
      NUMBER = {TR-06-03},
      INSTITUTION = {Dept. of Computer Science, University of Pisa},
      URL = {http://compass2.di.unipi.it/TR/Files/TR-06-03.pdf.gz},
      KEYWORDS = {WP3}
}