Filling for percolating filters for biological waste water purification Association between spoligotype-VNTR types and virulence of Mycobacterium bovis in cattle An abbreviated fire-assay atomic-absorption method for the determination of gold and silver in ores and concentrates Tests of periclase-carbon refractories in an arc steel-melting furnace Beschleunigung der Kalkauflösung bei den Stahlerzeugungsverfahren Ein neues Verfahren zur Untersuchung von Verschlackungsvorgängen an feuerfesten Steinen Narrative of a Voyage to Senegal in 1816 by J. B. Henry Savigny and Alexander Correard Mineral Analysis Worksheet 9 - Gold Analysis (Part 1) Analysis on content of Ni-Cr in artificial saliva after the Ni-Cr alloy was covered by different thickness porcelain ANALYTICAL METHOD FOR THE DETERMINATION OF GOLD, PLATINUM, PALLADIUM IN PITCHBLENDE ORE (above 40% U$sub 3$O$sub 8$) AND BARIUM SULP...