This author has not been identified. It may be one of the following persons: Look up 'Milan Milanovic' in GoogleIdentified as Dragan Gasevic This author has not been identified. It may be one of the following persons: Look up 'Adrian Giurca' in GoogleThis author has not been identified. It may be one of the following persons: Look up 'Gerd Wagner' in GoogleThis author has not been identified. It may be one of the following persons: Look up 'Vladan Devedzic' in Google