Wolfgang Lorenz Books

Die Modernisierung und Instandsetzung von Wohnraum: Duldung von Mieterhohung nach Modernisierungs- und Instandsetzungsmassnahmen in den alten und neuen Bundeslandern

By Wolfgang Lorenz, Bernd Lutz Blomeke, Harald Kinne, Bernd L Blomeke, Dieter Blummel

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Nomina Carabidarum

By Wolfgang Lorenz

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All published family-, genus- and species-group names of the ground beetles of the world are listed in alphabetical order. Included are synonyms and the most important unavailable names, incorrect...

A Systematic List of Extant Ground Beetles of the World

By Wolfgang Lorenz

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All published family-, genus- and species-group names of the ground beetles of the world are listed in systematic order. Excluded from this volume (but included in the 'Nomina' volume) are nomina d...

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.