ELECTRONIC	h   t   t   p   c o l o n   s l a s h   s l a s h   w   w   w dot i r e s dot p i e m o n t e dot i   t   s l a s h   q u a d e r n i dot h t m l l e w i s	http://www.ires.piemonte.it/quaderni.htmllewis	1