Gertrud Backes Books

Frauen und soziales Ehrenamt

By Gertrud Backes

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Altere und alte Frauen in Berlin (West)

By Gertrud Backes

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FRAUEN IM ALTER

By Gertrud Backes

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Schichten- und geschlechtsspezifische Aspekte der Vorbereitung auf Alter und Ruhestand

By Gertrud Backes

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Gender Health and Ageing

By Backes Gertrud M. Vera Lasch Katja Reimann Eds.

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The different research fields – gerontology, gender and health – have generated different views, knowledge and foci on ageing, health and gender. It is now necessary to integrate these aspects into...

Alter n als gesellschaftliches Problem

By Gertrud Backes

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Lebensphase Alter

By Wolfgang Clemens, Gertrud Backes

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Lebenslagen im Alter

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Soziologie und Alter n . Neue Konzepte fur Forschung und Theorieentwicklung.

By Manfred Stosberg, Wolfgang Clemens, Claus R. Schroeter, Gertrud M. Backes

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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.