1

How stowing affects strata convergence in a shield working

Year:
1966
Language:
english
File:
PDF, 240 KB
english, 1966
4

Laboratory investigation of the stability of insulating rock strips

Year:
1981
Language:
english
File:
PDF, 334 KB
english, 1981
5

Development of mobile support systems in the excavation of thick steep seams

Year:
1985
Language:
english
File:
PDF, 498 KB
english, 1985