How much can we trust high-resolution spectroscopic stellar chemical   abundances?
  To study stellar populations, it is common to combine chemical abundances from different spectroscopic surveys/studies where different setups were used. These inhomogeneities can lead us to inaccurate scientific conclusions. In this work, we studied one aspect of the problem: When deriving chemical abundances from high-resolution stellar spectra, what differences originate from the use of different radiative transfer codes? 
S. Blanco-Cuaresma, T. Nordlander, U. Heiter, P. Jofr\'e, T. Masseron,   L. Casamiquela, H. M. Tabernero, S. S. Bhat, A. R. ...
astro-ph.SR astro-ph.IM