| 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 | 216 | 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 | 119 | 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 | 94 | 2020 |
| 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 | 79 | 2021 |
| 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 | 76 | 2018 |
| 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 | 61 | 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 | 49 | 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 | 46 | 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 | 41 | 2013 |
| 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 | 39 | 2018 |
| 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 | 32 | 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 | 30 | 2021 |
| Organic Agriculture in the Context of 2030 Agenda Implementation in European Union Countries RL Pânzaru, D Firoiu, GH Ionescu, A Ciobanu, DM Medelete, R Pîrvu Sustainability 15 (13), 10582, 2023 | 21 | 2023 |
| Achievement of the sustainable development goals (SDG) in Portugal and forecast of key indicators until 2030 D Firoiu, GH Ionescu, R Pîrvu, R Bădîrcea, IC Patrichi Technological and Economic Development of Economy 28 (6), 1649–1683-1649–1683, 2022 | 18 | 2022 |
| 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 | 16 | 2019 |
| 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 | 14 | 2022 |
| The information and communication technology–impact on the hospitality industry in Romania D Firoiu, AG Croitoru Ecoforum Journal 4 (1), 6, 2015 | 12 | 2015 |
| Resursele umane în turism D Firoiu Universul Juridic, 2006 | 12 | 2006 |
| Can Europe reach its environmental sustainability targets by 2030? A critical mid-term assessment of the implementation of the 2030 Agenda D Firoiu, GH Ionescu, LM Cismaș, L Vochița, TM Cojocaru, RȘ Bratu Sustainability 15 (24), 16650, 2023 | 10 | 2023 |
| 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 | 10 | 2009 |
