System approach to development of co-operation of tourism companies Journal title: Проблеми економіки Authors: Alla Kizyun Subject(s):
Evaluation of Transmission Grid Voltage Impact on the Operation of Power Units’ Auxiliary Systems Journal title: Acta Energetica Authors: Józef Paska, Mariusz Kłos, Łukasz Rosłaniec, Rafał Bielas, Magdalena Błędzińska, Marek Głaz Subject(s):
