Useful links
Regulatory Office for Network Industries
Ministry of Economy of the Slovak Republic
Slovak gas and petroleum association
Agency for the Cooperation of Energy Regulators
Energy Control Austria
European Commission, Energy section
International Energy Agency
U.S. Energy Information Administration
ERGEG European Regulators Group for Electricity and Gas
GIE Gas Infrastructure Europe
Marcogaz, technical association of the European Gas Industry
EURO GAS
IGU International gas union
EASEE - gas
European Federation for Energy Traders