These cover the ending of state aid to the Mezzogiorno and the direct election of local mayors. All the main parties are now backing the Yes vote.
Another of the 10 referendums, abolishing special aid to the Mezzogiorno (the south), is set to be headed off as the issue of regional assistance is being recast.
He says the south is 'a priority problem' and hopes it will not become a distinct world like Italy's Mezzogiorno. Government officials in Madrid say the north-south divide is less accentuated in Spain than in some other countries.
Politicians have been discussing the Mezzogiorno's problem since the area was conquered by Garibaldi in 1860.
But this will merely increase the income gap between the north and the south and push the 'Mezzogiorno' back to the peripheral role it played when the first republic began after the war.
But they would point out that the Mezzogiorno theory should not have, and cannot have, any credibility in a region of eastern Germany so traditionally strong in finance, commerce, and the arts.
A Mezzogiorno never had a combination of culture and industry.' Despite Mr Biedenkopf's bold statements, there seems little likelihood of a significant cut in transfers and subsidies from west to east in the next decade.