On the placing of synchronized vector measurements in network 110 - 330 kV for identification of the Kaliningrad region power system regimeMagomed Gadzhiev, Eugenia Gulevich, Vyacheslav Korobka, Vladimir Ryabchenko and Yuriy SharovE3S Web Conf., 58 (2018) 01005DOI: https://doi.org/10.1051/e3sconf/20185801005