1. Characteristics of outbursts of gas in mines;Briggs;Trans. Instn Min. Engrs,1920
2. Instantaneous outbursts of coal and gas;Hargraves,1958
3. Current investigations of stress relief in Canadian coal mines;Ignatieff;Can. Min. metall. Bull.,1954
4. Outbursts of gas and coal;Lama;Colliery Engng,1968
5. Rock bursts in the western portion of the South Wales coalfield;Pescod;Trans. Instn Min. Engrs,1947