bs-toggle="dropdown" aria-expanded="false">Background</a>
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          <a href="../articles/crop_distribution_maps.html">Crop distribution maps</a>
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        <li>
          <a href="../articles/model_description.html">Model description</a>
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          <a href="../articles/input_data.html">Input data</a>
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        <li>
          <a href="../articles/country_examples.html">Country examples</a>
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