000 00595nab a2200193 4500
005 20260520003104.0
008 260224s2013 xxu ing
041 _aInglés
245 0 0 _aDevelopment of alternative drive concepts for downhole hammers in deep drilling operations - a feasibility study
260 _a
_b
_csep. 2013
270 _a17/09/2013 ; 17/09/2013
300 _a4 p. ; 119-123
581 _a3
773 0 _tOil Gas European Magazine
_g39
942 _cARTICULO
100 1 _aLehmann, F.
_953454
100 1 _aReich, M.
_944095
999 _c187886
_d187886