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Studien uber Anthocyane. XXII.: Beitrage zur papier-chromatographischen Analyse der naturlichen Anthocyane und Anwendung derselben zur Untersuchung von Farbstoffen in den roten Impatiens-Bluten und den blutroten Pfirsich-Fruchten
Aristotle. A Study in the Development of Ideas. Vol. I: Democritus. Weight and Size. An Exercise in the Reconstruction of Early Greek Philosophy. Collection d’Etudes Ancien-nes. Les Belles Lettres, Paris/Brill, Leiden 1981. XXI, 419 S.