@article{article19fce46c,
title   = {He II λ ‘lambda’ 4686 emission from the massive binary system in η ‘eta’car: constraints to the orbital elements and the nature of the periodic minima},
author = {Teodoro, M and Damineli Neto, Augusto and Hickel, G and Henrique, W and Jablonski, F},
year = {2016},
doi = {10.3847/0004-637X/819/2/131},
journal   = {The Astrophysical Journal}
}