Here's that excellent GES abundance paper mentioned in today's discussion after Marc's talk - paper

The ARA&A review article describing the state of the field of abundance results and early universe interpretations ("Near-Field Cosmology with Metal-Poor Stars")
and book chapter that gives an introduction to the field of stellar archaeology "Metal-Poor Stars and the Chemical Enrichment of the Universe"

Submitted version of the method paper for "The Cannon: A data-driven approach to stellar label determination" (M. Ness et al.)

-- The name "The Cannon" refers to Annie Jump Cannon's data-driven classification scheme, not to anything militaristic or t-shirt related.