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    • Rewolucja telekomunikacyjna 

      Łazor, Jerzy (Oficyna Wydawnicza SGH - Szkoła Główna Handlowa, 2017)
      After 1989 the Polish telecommunications sphere changed radically for technological rea- sons and due to the market transformation. In the sphere of telephony, first, there was a rapid increase in the number of landline ...