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Message * Avtomatizat︠s︡ii︠a︡ i Ėkonomii︠a︡ Ėlektroėnergii V Sistemakh Promyshlennogo Ėnergosnabzhenii︠a︡ Spravochnye Materialy i Primery Raschetov - 5283012646 - 9785283012643