International Bureau of Strata Mechanics
Central Mining Institute
Plac Gwarków 1
40-951 Katowice - Poland
Fax: (48) 32 2592640
e-mail: jdubinski@gig.katowice.pl

International Committee on Automation of Mines and Quarries (ICAMC)
Dr. B.Firganek
ul. Sokolska 80
40-087 Katowice – Poland
Fax/tel: (48) 32 3504030
e-mail: icamc@micon.pl