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978-3-7908-1308-1Springer-Verlag Berlin Heidelberg 2000
笨拙的你
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The National Innovation System of Belgium978-3-642-57688-1Series ISSN 1431-1933 Series E-ISSN 2197-7178
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Contributions to Economicshttp://image.papertrans.cn/t/image/914539.jpg
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