Regina Wittmann Books

Stadtebau der Normalitat

By Regina Wittmann, Wolfgang Sonne

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St. Reinoldi in Dortmund

By Nathalie Josephine Von Mollendorff, Regina Wittmann, Christos Stremmenos, Wolfgang Sonne, Barbara Welzel

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Zwei Objektüberlieferungen werden wissenschaftlich aufeinander bezogen: Bestände im Archiv für Architektur und Ingenieurbaukunst NRW der TU Dortmund und die Stadtkirche St. Reinoldi in Dortmund. In...

Eins zwei drei Baukunstarchiv

By Regina Wittmann, Wolfgang Sonne

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Architektur ist gebaute Geschichte und nicht nur Zeugnis historischer Prozesse oder ingenieurstechnischer Errungenschaften, sondern auch gesellschaftswissenschaftlich von grosser Aussagekraft. Als...

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.