Library with the equivalent widths of the Balmer lines λλ 3835, 3889, 3970, 4101, 4349, 4861; the He II lines λλ 4541 and 4200; the He I lines λλ 4471, 4387, 4144; and the He I +He II blended lines λ4026, measured in 45,000 CMFGEN models (Zsargó et al. 2020), and 202 PoWR models (Hainich et al. 2019) of OB stars.

{"references": ["From CMFGEN models of Massive Stars (Zsarg\u00f3 et al. 2020)", "From the grid of PoWR models of OB stars (Hainich et al. 2019)"]}