the action plan was drawn up in a period when global navigation satilic systems were being implemented specifically the european jusstationary navigation overlay service system
The action plan was drawn up in a period when the global navigation satellite systems were being implemented, specifically, the European Geostationary Navigation Overlay Service (EGNOS) system.
The action plan was drawn up in a period when global navigation satellite systems were being implemented, specifically, the European Geostationary Navigation Overlay Service system.