@article {2017ApJ...835..239S, title = {Chemical Abundances of M-dwarfs from the APOGEE Survey. I. The Exoplanet Hosting Stars Kepler-138 and Kepler-186}, journal = {\apj}, volume = {835}, number = {2}, year = {2017}, month = {feb}, pages = {239}, keywords = {Astrophysics - Astrophysics of Galaxies, Astrophysics - Solar and Stellar Astrophysics, infrared: stars, Planetary systems, planet-star interactions, stars: abundances, stars: fundamental parameters, stars: low-mass}, doi = {10.3847/1538-4357/835/2/239}, author = {Souto, D. and Cunha, K. and arc\'{\i}a-Hern{\'a}ndez, D.~A. and Zamora, O. and Allende Prieto, C. and Smith, V.~V. and Mahadevan, S. and Blake, C. and Johnson, J.~A. and J{\"o}nsson, H. and Pinsonneault, M. and Holtzman, J. and Majewski, S.~R. and Shetrone, M. and Teske, J. and Nidever, D. and Schiavon, R. and Sobeck, J. and arc\'{\i}a P{\'e}rez, A.~E. and G{\'o}mez Maqueo Chew, Y. and Stassun, K.} }