Helmut Reifeld Books

Islam und Rechtsstaat

By Birgit Krawietz, Helmut Reifeld

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Islam and the rule of law

By Birgit Krawietz

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Islamic Education Diversity and National Identity

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Islamic Education Diversity and National Identity

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Family and Gender

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Papers presented at the Workshop on Family and Gender : Changing Patterns of Family and Gender Values in Europe and India, held at Neemrana Fort Palace, Alwar, during 1-4 March 2000.

Civil Society Public Sphere and Citizenship

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Zwischen Empire und Parlament

By Helmut Reifeld

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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.