000 | 00393nam a2200145Ia 4500 | ||
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001 | 00879 | ||
008 | 190706s9999 xx 000 0 und d | ||
082 | _a622.206 I61 | ||
100 | _aINTERNATIONAL CONGRESS ON ROCK MECHANICS | ||
245 | 0 | _aPROCEEDINGS OF SIXTH INTERNATIONAL CONGRESS ON ROCK MECHANICS | |
250 | _a3 | ||
260 |
_aROTTERDAM _bBALKEMA _c1987 |
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300 | _a31X22 | ||
942 |
_cREF _2DDC |
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999 |
_c9451 _d9451 |