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Planck, Max

  1. A German physicist of the late nineteenth and early twentieth centuries. Planck was one of the founders of quantum mechanics . ( See Planck's constant .)

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Max Planck Institute for Demographic Research, working paper, 2007.

Max Planck Institute for Demographic Research, working paper, 2007 ( pdf).

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tortuous

[tawr-choo-uhs ]

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