Summary of the research carried out by the Studies and Research Office of the Penitentiary Administration: or contacted out to universities and outside research bodies during the period 1981-1985 and unpubl. ; Seventh United Nations Congress on the Prevention of Crime and the Treatment of Offenders, Milan, Italy, 26 August to 6 September 1985 (Repubblica Italiana, Ministero di Grazia e Giustizia, Direzione Generale II. P.P., Ufficio Studi, Ricerche e Documentazione, 1985)