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005 20250425161534.0
008 250425s9999 xx 000 0 und d
041 _aeng
082 _aIBM4381
100 _aROBBINS, RICHARD J
245 0 _aRAPID EXCAVATION AND TUNNELING CONFERENCE
250 _aS.E.
260 _aS.L.
260 _aSin Pais
_bS.E.
_c1976
500 _aCLASIFICACION: 622.26
942 _c01
010 _a22575
999 _c211220
_d211220