ZAGREB (Croatia), February 12 (SeeNews) - Tele2 Croatia reduced its negative earnings before interest, tax, depreciation and amortisation (EBITDA) to 83 million crowns ($13 million/8.8 million euro) in the fourth quarter of 2007 from 114 million a year earlier as revenue surged, its Swedish parent company, wireless operator Tele2, said on Tuesday.