This author has not been identified. Look up 'Markos Aivazoglou' in GoogleThis author has not been identified. Look up 'Antonios O. Roussos' in GoogleThis author has not been identified. Look up 'Dionisis Margaris' in GoogleThis author has not been identified. Look up 'Costas Vassilakis' in GoogleThis author has not been identified. Look up 'Sotiris Ioannidis' in GoogleThis author has not been identified. Look up 'Jason Polakis' in GoogleThis author has not been identified. It may be one of the following persons: Look up 'Dimitris Spiliotopoulos' in Google