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1by de Baar, H.J.W., van Leeuwe, M.A., Scharek, R.A., Goeyens, K., Bakker, K., Fritsche, P.Get access
Published 1997
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Article in Journal/Newspaper -
2by van Weerden, E.J.“... of Ca, Mg, NH 4+, Na, K, Cl, total carbonic acid, inorganic phosphate, sulphate and steam-volatile fatty...”
Published 1959
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Doctoral or Postdoctoral Thesis