Iron abundance in hot hydrogen-deficient central stars and white dwarfs from FUSE, HST, and IUE spectroscopyS. Miksa, J. L. Deetjen, S. Dreizler, J. W. Kruk, T. Rauch and K. WernerA&A, 389 3 (2002) 953-962DOI: https://doi.org/10.1051/0004-6361:20020655