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Proceedings Papers

Paper presented at the ISRM International Symposium, October 23–24, 1973
Paper Number: ISRM-IS-1973-013
... of ground falls in mine workings which is based on their causes, i, e, the genetic classification of ground falls, Simultaneously, principal preventive means of several most frequently encpuntered types of ground falls are indicated. xpenx Ground Fall noaaep genetic classification peq xpenh...

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