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"This book is especially timely given the renewed interested in lunar mission and our focus on getting humans to Mars. We know that students are really interested in "new space" and space exploration. This book fills a need to prepare students for missions beyond earth orbit." - Ron Madler, Embry-Riddle Aeronautical University

"Spencer and Conte have produced an excellent resource for the interplanetary trajectory designer. The topics covered in this text are appropriate for both the senior undergraduate orbital mechanics student and the advanced space mechanics graduate student. This is a must have reference for any Astrodynamicist." - Julio César Benavides, The University of Texas at Arlington

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