Hilal Unyay, Andrii Kostyniuk, Szymon Szufa, Artur Lewandowski, Blaž Likozar, Grzegorz Wielgosinski, Dry vs wet torrefaction of oxytree biomass: A comparative study on fuel properties and energy yield, Energy Conversion and Management, Volume 350, 2026, 120974, ISSN 0196-8904, https://doi.org/10.1016/j.enconman.2025.120974

Palamarchuk, I.; Priss, O.; Zozulyak, O.; Kiurcheva, L.; Vasylenko, O.; Dyadyura, K.; Romanowska-Duda, Z.; Obraniak, A.; Szufa, S.; Hutsol, T. Hybrid Technology of Beet Pulp Dewatering with Process Intensification in a Convection Dryer as an Element of Sustainable Processing of Agro-Industrial Waste into Bioenergy.  Sustainability 2025, 17, 10327. https://doi.org/10.3390/su172210327

Kukharets Valentyna, Rasa Čingiene, Dalia Juočiūnienė, Savelii Kukharets, Egidijus Blažauskas, Szymon Szufa, Andrii Muzychenko, Svitlana Beleі, Nazar Lahodyn, and Taras Hutsol. 2024. “Regression Analysis of the Impact of Foreign Direct Investments, Adjusted Net Savings, and Environmental Tax Revenues on the Consumption of Renewable Energy Sources in EU Countries” Energies 17, no. 17: 4465. https://doi.org/10.3390/en17174465

Szufa, Szymon, Hilal Unyay, Piotr Piersa, Aleksandra Kędzierska-Sar, Zdzislawa Romanowska-Duda, and Blaz Likozar. “Reduction of Spruce Phytotoxicity by Superheated Steam Torrefaction and Its Use in Stimulating the Growth of Ecological Bio-Products: Lemna minor L.” Biomass Conversion and Biorefinery (2025). https://doi.org/10.1007/s13399-024-03231-7.