This is a research report of the SOLE Project partnership, developed by Scienter (Bologna, Italy): Michela Moretti and Simona Mureddu.
English version provided by Scienter
© The content of the SOLE Project - Leonardo da Vinci Programme, Contract I/01/B/F/PP-120550 - can be freely used by Schools, Universities and Training Institution provided that the SOLE logo is maintained and the source fully cited.
No part can be published for commercial use without formal permission of the Project promoter.