Karlfriedrich Ohr Books

Die Basilika in Pompeji

By Karlfriedrich Ohr

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Wirtschaftsbauten in der antiken Stadt. Internationales Kolloquium 16. 17. November 2012 Karlsruhe

By Juergen Krueger, Juergen J. Rasch, Ulrich Fellmeth, Karlfriedrich Ohr

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Vitruvii Basilicana et cetera

By Karlfriedrich Ohr

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Sieben Aufsätze über Vitruv und seine Anleitungen zum Bau von Basiliken, über die Basilica und ihre architektonische Ableitung von der griech. Stoa, über die Basilica Aemilia am Forum Romanum, über...

Kunst und Kulturdenkmale im Landkreis Rastatt und in Baden Baden.

By Clemens Kieser, Gunther Wieland, Martin Walter, Wolfgang Stopfel, Britta Rabold, Karlfriedrich Ohr, Folke Damminger

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Fighting Like a Guerrilla

By Rajesh Rajagopalan

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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.