It is more that they read the Italian AIP and used the same calculation method. The reference is AIP Italia AD 2 LIMJ 1-9. Within the local flying restriction they require a 50% increase of the aerodrome operating minima because the runway strip is not in conformity with ICAO.
Thank you marioett, that resolves why the Jepp and Lido minima do not correspond to the AIP chart, which was puzzling me.