000 00331nam a2200133Ia 4500
999 _c48056
_d48056
005 20200312164911.0
008 190711s9999 xx 000 0 und d
082 _a622.2 O125
100 _aObert, L
245 0 _aRock Mechanics and Design of Structures in Rock
260 _aLondon
_bWiley
_c1967
300 _a23X15
942 _cBK