File	Title	Manuscript Id
Chapter 17. The Hertzsprung-Russell Diagram	astro_tutorial_ch17_the_hertzsprung-russell_diagram.html	51d31d36757a2e693c000002
DLAP questions	astro_tutorial_ch17_the_hertzsprung-russell_diagram_dlap.xml	51d31d36757a2e693c000002