@article{article441088ec,
title   = {The 13th Data Release of the Sloan Digital Sky Survey: First Spectroscopic Data from the SDSS-IV Survey Mapping Nearby Galaxies at Apache Point Observatory},
author = {Albareti, Franco D and Barbuy, Beatriz Leonor Silveira and Chavez, Camacho and Bergmann, Thaisa Storchi},
year = {2017},
doi = {10.3847/1538-4365/aa8992},
journal   = {Astrophysical Journal Supplement Series}
}