Path To Lunar Surface with NASA's Lunar Orbital Platform-Gateway (LOP-G)
NASA
<ul><li><a href="//commons.wikimedia.org/wiki/File:Gateway_Update,_Jason_Crusan_NASA_HQ.pdf" title="File:Gateway Update, Jason Crusan NASA HQ.pdf">Gateway Update, Jason Crusan NASA HQ.pdf, Page 2</a></li>
<li><a href="//commons.wikimedia.org/wiki/File:Cislunar_and_Gateway_Overview.pdf" title="File:Cislunar and Gateway Overview.pdf">Cislunar and Gateway Overview.pdf, Page 4</a></li></ul>