@inproceedings{sgem2013s03074, title = {THE EFFECT OF DEGASSING BOREHOLE INTO OLD MINE WORKINGS IN THE QUATERNARY OF METHANE CONTENT IN THE SOIL AIR}, author = {Hummel, Martin and Hummelovб, Ilona and Gibesovб, Beata}, booktitle = {SGEM International Multidisciplinary Scientific GeoConference EXPO Proceedings; 13th SGEM GeoConference on SCIENCE AND TECHNOLOGIES IN GEOLOGY, EXPLORATION AND MINING}, year = {2013}, pages = {781 - 786 pp}, publisher = {Stef92 Technology}, doi = {10.5593/sgem2013/ba1.v1/s03.074} }