E. Audibert, The testing of explosives", paper presented at the First Conference, 1931.

H. F. Coward, Research on the mcendivity of Coal-Mine Explosives : A Review, 1962.

W. Cybulski, Investigations on safety of explosives in presence of methane and coal dust, in coal and sandstone äs well äs in steel mortars, 24 at the 12th Conference, 1963.

R. Loison and G. Thouseau, Risque d'inflammation du grisou par le tir au mortier avec piaquette de bourrage, Annales des Mines, issue.26, 1954.

H. Meerbach, Versuche zur Zündung von Schlagwettern unter Grubenbedingungen, paper no. 17 at the llth Conference, 1961.

J. Nagy, Hazards of Cut-off Explosive Charges in Multiple Blasting of Coal, paper no. 19 at the lOth Conference, 1959.