A Dynamic Similarity Index for Assessing Voltage Source Behaviour in Power Systems. - Onur Alican; Dionysios Moutevelis; Josep Arévalo-Soler; Carlos Collados-Rodríguez; Jaume Amoros-Torrent; Oriol Gomis-Bellmunt; Marc Cheah-Mane; Eduardo Prieto-Araujo (CoRR, 2025)