Biolcheva, P., Beleliev, D. Energy security in conditions of increased levels of risk. Sofia: 2021 194-199,.
Biolcheva, P., Beleliev, D. Energy security in conditions of increased levels of risk. Sofia: 2021 194-199,.
Biolcheva, P., Beleliev, D. (2021) Energy security in conditions of increased levels of risk, Sofia: 194-199,.
Biolcheva, P., & Beleliev, D. (2021). Energy security in conditions of increased levels of risk. Industrial Growth Conference 2020 : Conference Proceedings Book, II-IV Oct. MMXX, Hotel Sol Nessebar Palace (с. 194-199). Sofia:.
Biolcheva P, Beleliev D. Energy security in conditions of increased levels of risk. Sofia: 2021. p. 194-199.