Evaluation of fault current limitation techniques in urban meshed 110-kV subtransmission networks. - Bruno J. O. Sousa; Matti Lehtonen; Atte Pihkala (ISGT Europe, 2013)

Battery Energy Storage System for Frequency Control and Fast Peak Shaving - Case Helsinki. - Pirjo Heine; Atte Pihkala; Hannu-Pekka Hellman; Kristiina Siilin; Suvi Takala; Pia Ruokolainen; Minna Laasonen (ISGT Europe, 2019)