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Abundance analyses of cool extreme helium stars

Authors:	Gajendra Pandey N Kameswara Rao David L Lambert C Simon Jeffery Martin Asplund

Institution:	;¹Department of Astronomy, University of Texas, Austin, TX 78712-1083, USA;²Indian Institute of Astrophysics, Bangalore 560034, India;³Armagh Observatory, College Hill, Armagh BT61 9DG;⁴Astronomiska Observatoriet, Box 515, S-751 20 Uppsala, Sweden

Abstract:

Keywords:	stars: abundances stars: AGB and post-AGB stars: chemically peculiar stars: evolution