Siegfried Schwarz Books

Fahrspass mit dem Auto ohne Umweltschaden

By Siegfried Schwarz

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Molecules of Life and Mutations

By Schwarz Siegfried M.D., Siegfried Schwarz

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"This book provides insights into the structures and functions of 130 of the most important biomolecules and their interactions with other endogenous or exogenous molecules. These interactions are...

Zeitgeschichtsforschung in der DDR

By Ingrid Matschenz, Marga Voigt, Siegfried Prokop, Siegfried Schwarz, Walter Bartel

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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.