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  1. 1
    Industrial research and technological innovation : an econometric analysis.

    Industrial research and technological innovation : an econometric analysis. Dahkki Mansfield, Edwin

    Almmustuhtton 1968
    Girji
    Lasit oiddohiidda
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  2. 2
    Industrial research and technological innovation : an econometric analysis.

    Industrial research and technological innovation : an econometric analysis. Dahkki Mansfield, Edwin

    Almmustuhtton 1968
    Girji
    Lasit oiddohiidda
    Furkejuvvon:

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