All efforts have been made to make possible to print the single pages of this website without any particular artifice, unfortunately often needed but even more often with uncertain results. With the most common configurations is possible to print a perfectly readable copy of any page simply selecting the command PRINT (or equivalent) from the FILE menu.

Sometimes it happens that in the printed page is not included the internet address (the so called URL), making difficult if not impossible to come again on the page online, e.g. to check if it has been updated; for this reason, at the end of every page you'll find the URL (the one of this page, for example, is ).