Peter Zencke Books

The SAP R 3 on the Internet

By Alexander Hildenbrand, Bernd Matzke, Peter Zencke, Mario Perez

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Connecting the SAP R/3 System to the Internet sets new standards for communications between enterprises, business partners and customers. The extensive integration of SAP's R/3 technology and the R...

MySAP CRM

By Peter Zencke, Rudiger Buck Emden

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Numerische Methoden der Approximation und Semi Infiniten Optimierung

By Peter Zencke, Rainer Hettich

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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.