Klaus Heubeck Books

Die Altersversorgung der Geschaftsfuhrer in GmbH und GmbH Co.KG.

By Ursula Schmauck, Klaus Heubeck

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Finanzierung der Altersversorgung des Oeffentlichen Dienstes

By Bert Rurup, Klaus Heubeck

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Finanzierung der Altersversorgung des oeffentlichen Dienstes

By Klaus Heubeck

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Das vorliegende Gutachten wurde im Auftrag der Arbeitsgemeinschaft kommunale und kirchliche Altersversorgung (AKA) e. V. erstellt. Es untersucht ausführlich unter ökonomischen und versicherungsmath...

Die Prufung von Pensionsruckstellungen

By Klaus Heubeck

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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.