Robert Otzen Books

Maschinenkunde
Der Eisenbau
Der Eisenbau

By Robert Otzen, Martin Gruning

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Der neuzeitliche Strassenbau
Statik
Statik

By Robert Otzen, Walther Kaufmann

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Unterbau
Unterbau

By Robert Otzen, W. Hoyer

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Der neuzeitliche Strassenbau
Der neuzeitliche Strassenbau

By E. Neumann

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Betriebswissenschaft
Betriebswissenschaft

By Robert Otzen, Max Mayer

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Wasserkraftanlagen
Wasserkraftanlagen

By Robert Otzen, Adolf Ludin

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Wasserkraftanlagen
Wasserkraftanlagen

By

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Kanal und Schleusenbau

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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.

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