000 00303pam a2200109a 44500
082 _aTR
_bRI-9253
100 _aBryan F. Ulrich
245 1 _aRelationships between annuals thickness and the integrity of resin grouted roof bolts
260 _a
_b
_c
700 _aRaymond M. Statehom
997 _aTR6626 C
999 _c405791
_d405791