Back Briefe an eine deutsche Prinzessin German Cartas a una princesa alemana Spanish Kirjeitä saksalaiselle prinsessalle fysiikasta ja filosofiasta Finnish
Letters to a German Princess, On Different Subjects in Physics and Philosophy (French: Lettres à une princesse d'Allemagne sur divers sujets de physique et de philosophie) were a series of 234 letters written by the mathematician Leonhard Euler between 1760 and 1762 addressed to Friederike Charlotte of Brandenburg-Schwedt and her younger sister Louise.[1]
- ^ Fellmann 2007, pp. 73–74
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