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      <marc:subfield code="a">Hollan, E., </marc:subfield>
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      <marc:subfield code="a">Long-term modelling of the vertical distribution of mass in large lakes with application to Lake Constance / </marc:subfield>
      <marc:subfield code="c">by E. Hollan, P.F. Hamblin and H. Lehn.</marc:subfield>
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      <marc:subfield code="a">Untere Seestraße, Langenargen/FRG : </marc:subfield>
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      <marc:subfield code="a">At head of title: Conference proceedings Functional Structural Properties of Large Lakes.</marc:subfield>
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      <marc:subfield code="a">Digitized edition from print [produced by Environment and Climate Change Canada].</marc:subfield>
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      <marc:subfield code="a">"Lake Constance is Central Europe's second largest lake (volume 47.6km3, length 62 km, width 13 km and mean depth 100 m). Over the past 34 years of declining water quality generally biweekly observations of temperature, suspended material and other limnological parameters were taken at several locations in this lake"--Page [1].</marc:subfield>
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      <marc:subfield code="a">Hamblin, P. F., </marc:subfield>
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      <marc:subfield code="a">Lehn, H. </marc:subfield>
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