Adjusting third zone distance protection to avoid voltage collapse. - Vassilis C. Nikolaidis; Nikolaos Savvopoulos; Anastasia S. Safigianni; Costas D. Vournas (PSCC, 2014)

An Effective Method to Estimate the Aggregated Flexibility at Distribution Level. - Nikolaos Savvopoulos; Nikos D. Hatziargyriou (IEEE Access, 2023)