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      <marc:subfield code="a">Halfon, Efraim, </marc:subfield>
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      <marc:subfield code="a">Microcomputers in ecological modelling : </marc:subfield>
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      <marc:subfield code="c">Efraim Halfon.</marc:subfield>
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      <marc:subfield code="a">"April 1989."</marc:subfield>
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      <marc:subfield code="a">"This paper is the introduction to the special issue of Ecological Modeling dedicated to the application of microcomputers in ecology and ecological modelling. The paper describes the main differences in microcomputers, in the chips that drive them and their graphic capabilities"--Management perspective.</marc:subfield>
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