UNECE » Sustainable Energy» Areas of Work » Coal Mine Methane » Meetings and Events » Coal Mine Methane » coal mine methane » 2006 » Second Session of the Ad Hoc Group of Experts on Coal Mine Methane » Second Session of the Ad Hoc Group of Experts on Coal Mine Methane » Second Session of the Ad Hoc Group of Experts on Coal Mine Methane - Questionnaire