Serban, Ioan; Teodorescu, Remus; Marinescu, Corneliu: 'Energy storage systems impact on the short-term frequency stability of distributed autonomous microgrids, an analysis using aggregate models', IET Renewable Power Generation, 2013, 7, (5), p. 531-539, DOI: 10.1049/iet-rpg.2011.0283
IET Digital Library, https://digital-library.theiet.org/;jsessionid=2fejdb4pt5d7u.x-iet-live-01content/journals/10.1049/iet-rpg.2011.0283