You may find the current regulations of the Italian air traffic authorities ENAC here.
(The documents are only available in Italian.)
Regulations 07_2004: “Traffic Regulations for the Exterior Area of the Bolzano Airport”
Regulations ENAC 06_2013: “The Airport Emergency Plan PEA”
Regulations 10_2013: “Entry Provisions for the Interior Area of the Bolzano Airport”