00908nam#a2200277zcb4500 990000000070203331 AT-OBV 20230310191844.0 tu 930928|1993####|||###########|||#|#eng#c AC00714278 (AT-OBV)AC00714278 AC00714278 (Aleph)000000007ACC01 (DE-599)OBVAC00714278 TUW ger rakwb eng XD-US Aljoe, William W. aut Neutralization of acidic discharges from abandoned underground coal mines by alkaline injection by William W. Aljoe and Jay W. Hawkins Washington, DC 1993 II, 37 S. graph. Darst., Kt. Report of investigations / United States Department of the Interior, Bureau of Mines 9468 Literaturverz. S. 36- 37 Hawkins, Jay W. aut (AT-OBV)AC00073533 9468