Mihai, F.C., Minea, I., Ulman, S.-R. (2023) Water resources preservation through circular economy: The case of Romania, 143-176, Chapter 8, in Water Management and Circular Economy, Zamparas, M.G., Kyriakopoulos, G.L., Eds., ISBN: 978-0-323-95280-4, Imprint: Elsevier, 2023 (book chapter).
Mihai, F.C., Ulman, S.-R. (2023) Circular economy in Green Deal strategies, 49-63, Chapter 4, in Sustainable and Circular Management of Resources and Waste Towards a Green Deal, Prasad, M.N.V., Smol, M., Eds., ISBN: 978-0-323-95278-1, Imprint: Elsevier, 2023 (book chapter).
Ulman, S.-R., Căutișanu, C. (2022) Study on Environmental Wellbeing and Its Main Socio-Economic Factors: Evidence from Romania. Proceedings of BASIQ, 201-208. DOI: 10.24818/BASIQ/2022/08/026
Ulman, S.-R., Dobay, K.-M. (2022). Peculiarities regarding environmental protection in Romania. Regional analysis. GeoReview, 32, 49-64.
Tanasă, L., Brumă, I.S., Ulman, S.-R., Hoha, G.V. (2022). Theoretical approach with regard to the main benefits of short supply chains. Focus on small producers and local communities. Scientific Papers: Management, Economic Engineering in Agriculture & Rural Development, 22(3), 743-752.
Ulman, S.-R. (2021). Rural–urban differences regarding the effects of main socio-economic factors on severe material deprivation in Romania. Scientific Papers: Management, Economic Engineering in Agriculture & Rural Development, 21(1), 783-792.
Iacobuță, A.O., Asandului, L., Căutișanu, C. (2020). Assessment of Economic Growth in Romania. Is it a Sustainable One?. European Journal of Sustainable Development, 9(3), 513-537, ISSN 2239-5938, WOS: 000576799500036, DOI: 10.14207/ejsd.2020.v9n3p513.
Ulman, S.R., Căutișanu, C. (2020). Determinants of Persistent Poverty in the EU Countries. In: R. Pamfilie, V. Dinu, L. Tăchiciu, D. Pleșea, C. Vasiliu eds. 6th BASIQ International Conference on New Trends in Sustainable Business and Consumption. Messina, Italy, 4-6 June 2020. Bucharest: ASE, 267-274.
Mihai, C., Ulman, S. R., David, M. (2019). New Assessment of Development Status among the People Living in Rural Areas: an Alternative Approach for Rural Vitality. Scientific Annals of Economics and Business, vol. 66(2), pp. 167-192, WOS: 000512321400004, DOI: 10.2478/saeb-2019-0013.
Dobay, K.M., Ulman, S.R. (2019). “Facets of Poverty in Romania”, Cogito – Multidisciplinary Research Journal, 11(3), pp. 37-57.
Ulman, S.R., Mihai, C. (2018). Specificity of Severe Material Deprivation among Rural Communities in the North-East Region of Romania. In C. Năstase (ed.), The 14th Economic International Conference: Strategies and Development Policies of Territories: International, Country, Region, City, Location Challenges, May 10-11, 2018, Stefan cel Mare University of Suceava, Romania, pp. 192-207, Iasi, Romania: LUMEN Proceedings, WOS:000470307900018, DOI: 10.18662/lumproc.73.
Ulman, S.R. (2018). Study on general awareness regarding the problem of environmental degradation. CES Working Papers, X(1), 1-26.
Maxim, A., Mihai, C., Apostoaie, C.M., Maxim, A. (2017). Energy Poverty in Southern and Eastern Europe: Peculiar Regional Issues. European Journal of Sustainable Development, 6(1), 247-260, WOS: 000393805400018, DOI: 10.14207/ejsd.2017.v6n1p247.
Roman, T., Maxim, A. (2017). National Culture and Higher Education as Pre-determining Factors of Student Entrepreneurship. Studies in Higher Education, 42 (6), 993-1014.
Apostoaie, C.M., Maxim, A. (2017). Political Determinants of National Environmental Performance in the European Union. European Journal of Sustainable Development, 6 (1), 277-290, WOS: 000393805400021, DOI: 10.14207/ejsd.2017.v6n1p277.
Mihai, C., Maxim, A., Apostoaie, C.M. (2017). Voice of the Students: How can the EU take the global lead on tackling climate change?. CES Working Papers, XIX(1), 28-38.
Lucaşenco, E., Apostoaie, C.M., Maxim, A. (2017). The emergence of environmental factors as catalysts for tourism demand: a case study on Romania. CES Working Papers, IX (4), 597-612.
Valatin, G. et al. (2017). PESFOR-W: Improving the design and environmental effectiveness of woodlands for water Payments for Ecosystem Services. Research Ideas and Outcomes, 3: e13828, ISSN: 2367-7163.
Cosic, A., Diestelmeier, L., Maxim, A., Nguyen, T.A., Rossetto, N. (2017). Does Public Ownership provide affordable and reliable electricity to household customers? Case studies of electricity sector reforms in the UK, France, Germany and Italy. In The Reform of Network Industries: Evaluating Privatisation, Regulation and Liberalisation in the EU, Florio, M. (ed.), Edward Elgar Publishing, 139-156, ISBN: 978-1-78643-902-4.
Pohoaţă, I., Apostoaie, C.M., Maxim, A. (2016). The increasing role of the environment in catalysing sustainable tourism demand in Romania. Sustainable Hospitality. Cosma, S.A., Negruşa, A.L., Bota, M., Toader, V., Fleşeriu, C. (eds.), Editura Risoprint, Cluj-Napoca, 151-162.
Apostoaie, C.M. (2016). Relevant Determinants of the Political Parties’ Environmental Preference. Scientific Annals of Economics and Business (SAEB), 63 (SI), doi: 10.1515/saeb-2016-0135, 51-69, WOS: 000453150900003, DOI: 10.1515/saeb-2016-0135.
Apostoaie, C.M., Ionce, R. (2016). Identifying the Main Problems of Environmental Non-Governmental Organisations: Lessons from Romania. Present Environment and Sustainable Development – PESD, 10 (2), doi: 10.1515/pesd-2016-0026, 63-76.
Percic, S., Apostoaie, C.M. (2016). A Critical Review of the Most Relevant Welfare Indicators from an Environmental Perspective. “Ovidius” University Annals, Economic Sciences Series, XVI(1), 223-230.
Apostoaie, C.M. (2016). Assessing National Environmental Performance in the Eastern Partnership Countries. The Eastern Partnership under strain – time for a rethink? (EURINT 2016) Conference Proceedings, 149-168, WOS: 000390599900009.
Apostoaie, C.M., Mihai, C., Maxim, A. (2015). A bibliometric analysis on EU and global research on the environmental impact of cities. EURINT 2015 Conference Proceedings, 9-20, WOS: 000380496100001.