1. “POLITEHNICA” University of Bucharest, Splaiul Independentei 313, Bucharest 060042, Romania and INCAS – National Institute for Aerospace Research “Elie Carafoli”, B-dul Iuliu Maniu 220, Bucharest 061126, Romania, rusu.manuela@incas.ro
2. “POLITEHNICA” University of Bucharest, Splaiul Independentei 313, Bucharest 060042, Romania and INCAS – National Institute for Aerospace Research “Elie Carafoli”, B-dul Iuliu Maniu 220, Bucharest 061126, Romania, soare.ilinca@incas.ro
3. INCAS – National Institute for Aerospace Research “Elie Carafoli”, B-dul Iuliu Maniu 220, Bucharest 061126, Romania, soare.valentin@incas.ro
4. “POLITEHNICA” University of Bucharest, Splaiul Independentei 313, Bucharest 060042, Romania, sergiu_ton@yahoo.com
5. “POLITEHNICA” University of Bucharest, Splaiul Independentei 313, Bucharest 060042, Romania