Main bird excrement contamination type causing insulator flashovers in 110 kV overhead power lines in EstoniaTaklaja, Paul; Oidram, Rein; Niitsoo, Jaan; Palu, IvoOil shale2013 / p. 211-224 : ill https://artiklid.elnet.ee/record=b2631738*est https://doi.org/10.3176/oil.2013.2S.03 Journal metrics at Scopus Article at Scopus Journal metrics at WOS Article at WOS