Found 2 books

The Good Life ... und wie es gelingen kann

[de] The Good Life ... und wie es gelingen kann Kösel-Verlag

Schulz, Marc & Waldinger, Robert

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The Good Life, Lessons from the World's Longest Scientific Study of Happiness

[en] The Good Life, Lessons from the World's Longest Scientific Study of Happiness Simon & Schuster

Robert Waldinger & Marc Schulz

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