Konrad Petrovszky Books

Das osmanische Europa

By Stefan Rohdewald, Markus Koller, Andreas Helmedach, Konrad Petrovszky

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Geschichte schreiben im osmanischen Sudosteuropa

By Konrad Petrovszky

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Revolutia Romana televizata

By Ovidiu Tichindeleanu, Konrad Petrovszky

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Romanian revolution televised

By Konrad Petrovszky

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"With this volume we would like to celebrate critically the importance of the Revolution of 1989, as a problem-event that cannot be worked out in any of the subsequent answers. The Revolution is se...

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.