Paul Widmer Books

Schweizer Aussenpolitik. Von Pictet de Rochemont bis Edouard Brunner.

By Paul Widmer

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Die Inseln am Ende der Zeit.

By Bernd Steinhardt

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Das Korn des weiten Feldes

By Widmer Paul Dr., Paul Widmer

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Indogermanische Morphologie in erweiterter Sicht

By Yoko Yamazaki, Paul Widmer, Karin Stuber, F. Sommer

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Vom 7. bis 10. September 2020 hätte an der Universität Zürich die 16. Fachtagung der Indogermanischen Gesellschaft mit dem Rahmenthema "Jenseits der Formenlehre. Indogermanische Morphologie mit Gra...

Die Schweizer Gesandtschaft in Berlin

By Paul Widmer

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Die Schweiz als Sonderfall

By Paul Widmer

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Minister Hans Frolicher

By Paul Widmer

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How to Convert ISBN-10 to ISBN-13 (and Vice Versa): A Complete Guide

If you’re in the world of books—whether as a publisher, librarian, bookseller, or avid collector—you’ve likely come across the terms ISBN-10 and ISBN-13. Understanding these formats and knowing how to convert between them is essential for maintaining consistency and compatibility in book records. In this post, we’ll cover everything you need to know about ISBN conversions, step by step.

What is an EAN and How Does it Relate to an ISBN?

If you’ve ever purchased a product online or in a store, you’ve likely come across a barcode. Behind these barcodes lies a standardized system that makes modern commerce possible. Two key codes often encountered are the EAN (European Article Number) and ISBN (International Standard Book Number). But what are they, how are they connected, and why are they so crucial? Let’s explore.