the Penny Gap: Surviving Freemium Chasm: Conversion, Psychology, and Mathematical Impossibility of Free Software Economics

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the Penny Gap: Surviving Freemium Chasm: Conversion, Psychology, and Mathematical Impossibility of Free Software Economics

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the Penny Gap: Surviving Freemium Chasm: Conversion, Psychology, and Mathematical Impossibility of Free Software Economics


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EAN
  • 9783565374229

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