Mark A. Lorell Books

The use of prototypes in selected foreign fighter aircraft development programs

By Mark A. Lorell

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Troubled partnership

By Mark A. Lorell

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Preserving the Defense Industrial Base

By Mark A. Lorell, Mark Lorell

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An Overview of Acquisition Reform Cost Savings Estimates

By Mark Lorell

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Do joint fighter programs save money

By Mark A. Lorell

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In the past 50 years, the U.S. Department of Defense has pursued numerous joint aircraft programs, the largest and most recent of which is the F-35 Joint Strike Fighter (JSF). Joint aircraft progra...

The future of allied tactical fighter forces in NATO's Central Region

By Mark A. Lorell

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Price-based acquisition

By Mark A. Lorell

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Do joint fighter programs save money

By Mark A. Lorell

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These appendixes explain the methodology used in an analysis of the costs and savings of joint aircraft acquisition programs. They illustrate calculations for theoretical maximum savings in acquisi...

Casualties, public opinion, and presidential policy during the Vietnam War

By Mark A. Lorell

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This report examines the relationship between U.S. casualties and public support for U.S. military intervention in Korea and Vietnam, and concludes that a strong inverse relationship existed betwee...

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.