Regina Heller Books

Normensozialisation in Russland

By Regina Heller

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Studying effectiveness in international relations

By Martin Kahl, Hendrik Hegemann, Regina Heller

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"The question of how effective political tools actually are is among the most hotly debated in contemporary IR theory. There is no unanimity how to even measure the effectiveness and impact differe...

Russische Interessen im Balkankonflikt

By Regina Heller

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Normensozialisation in Russland

By Regina Heller

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Studying 'effectiveness' in international relations

By Martin Kahl, Hendrik Hegemann, Regina Heller

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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.