| The impact of ESG factors on market value of companies from travel and tourism industry GH Ionescu, D Firoiu, R Pirvu, RD Vilag Technological and Economic Development of Economy 25 (5), 820-849, 2019 | 148 | 2019 |
| Achieving sustainable development goals (SDG): Implementation of the 2030 Agenda in Romania D Firoiu, GH Ionescu, A Băndoi, NM Florea, E Jianu Sustainability 11 (7), 2156, 2019 | 91 | 2019 |
| The relationship between development of tourism, quality of life and sustainable performance in EU countries A Băndoi, E Jianu, M Enescu, G Axinte, S Tudor, D Firoiu Sustainability 12 (4), 1628, 2020 | 81 | 2020 |
| Circular economy–A new direction for the sustainability of the hotel industry in Romania R Pamfilie, D Firoiu, AG Croitoru, GHI Ionescu Amfiteatru Economic 20 (48), 388-404, 2018 | 66 | 2018 |
| Assessing the sustainable development and renewable energy sources relationship in EU countries B Włodarczyk, D Firoiu, GH Ionescu, F Ghiocel, M Szturo, L Markowski Energies 14 (8), 2323, 2021 | 62 | 2021 |
| The potential for innovation and entrepreneurship in EU countries in the context of sustainable development GH Ionescu, D Firoiu, R Pîrvu, M Enescu, MI Rădoi, TM Cojocaru Sustainability 12 (18), 7250, 2020 | 57 | 2020 |
| Assessing the Achievement of the SDG Targets for Health and Well-Being at EU Level by 2030 GH Ionescu, D Firoiu, A Tănasie, T Sorin, R Pîrvu, A Manta Sustainability 12 (14), 5829, 2020 | 38 | 2020 |
| Implementation of integrated management systems and corporate social responsibility initiatives—a Romanian hospitality industry perspective GH Ionescu, D Firoiu, R Pîrvu, R Bădîrcea, C Drăgan Sustainability 10 (10), 3684, 2018 | 37 | 2018 |
| The impact of credit availability on small and medium companies B Włodarczyk, M Szturo, GH Ionescu, D Firoiu, R Pirvu, R Badircea Entrepreneurship and sustainability issues 5 (3), 565-580, 2018 | 35 | 2018 |
| Tourism and tourism infrastructure from the perspective of technological changes D Firoiu, AG Croitoru Romanian Economic and Business Review 8 (2), 93-103, 2013 | 33 | 2013 |
| Reducing inequalities within and among EU Countries—assessing the achievement of the 2030 agenda for sustainable development targets (SDG 10) TM Cojocaru, GH Ionescu, D Firoiu, LM Cismaș, MD Oțil, O Toma Sustainability 14 (13), 7706, 2022 | 21 | 2022 |
| Dynamics of implementation of SDG 7 targets in EU member states 5 years after the adoption of the Paris agreement D Firoiu, GH Ionescu, R Pîrvu, LM Cismaș, S Tudor, IC Patrichi Sustainability 13 (15), 8284, 2021 | 18 | 2021 |
| Sustainable development of mountain hotels through the implementation of international management standards: The Romanian case D Firoiu, GH Ionescu, R Bădîrcea, L Vochița, M Enescu Sustainability 11 (22), 6487, 2019 | 11 | 2019 |
| The information and communication technology–impact on the hospitality industry in Romania D Firoiu, AG Croitoru EcoForum 4 (1), 1-4, 2015 | 11 | 2015 |
| Resursele umane în turism D Firoiu Universul Juridic, 2006 | 11 | 2006 |
| Economia turismului şi amenajarea turistică a teritoriului:(curs). D Firoiu Sylvi, 2002 | 10 | 2002 |
| Global recession and its effect on tourism and travel industry CS Murgoci, D Firoiu, E Ionescu, SA Ionescu Annals of DAAAM & Proceedings, 1573-1575, 2009 | 9 | 2009 |
| Digital performance in EU member states in the context of the transition to a climate neutral economy D Firoiu, R Pîrvu, E Jianu, LM Cismaș, S Tudor, G Lățea Sustainability 14 (6), 3343, 2022 | 8 | 2022 |
| Statistical Methods Used in the analysis and Forecast of the Tourism activity affected by Seasonality C Secareanu, D Firoiu Romanian Economic and Business Review 6 (4), 150, 2011 | 8 | 2011 |
| European tourism and product innovation D Firoiu, P Dodu Romanian Economic and Business Review 5 (2), 148, 2010 | 8 | 2010 |
