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Ion Exchange
  • PDF
  • English
  • Year: 1962
  • Author: Friedrich G. Helfferich
Multicomponent chromatography; theory of interference
  • PDF
  • English
  • Year: 1970
  • Author: Helfferich, Friedrich G.; Klein, Gerhard
Multicomponent chromatography; theory of interference
  • DJVU
  • English
  • Year: 1970
  • Author: Helfferich, Friedrich G.; Klein, Gerhard
Mass Transfer and Kinetics of Ion Exchange
  • PDF
  • English
  • Year: 1983
  • Author: John R. Millar (auth.), Lorenzo Liberti, Friedrich G. Helfferich (eds.)
Migration and Fate of Pollutants in Soils and Subsoils
  • PDF
  • English
  • Year: 1993
  • Author: Walter J. Weber Jr. (auth.), Domenico Petruzzelli, Friedrich G. Helfferich (eds.)
The Thirty Years War: A Documentary History
  • PDF
  • English
  • Year: 2009
  • Author: Tryntje Helfferich
Römische Zustände im Frühjahre 1850
  • PDF
  • German
  • Year: 1850
  • Author: Adolph Helfferich