1. Alcock, C., etal 1999, in ASP Conf. Ser. 165, The Third Stromlo Symposium: The Galactic Halo, ed. B. K. Gibson, T. S. Axelrod, & M. E. Putman (San Francisco: ASP), 362
2. Aparicio, J. M. & Fontaine, G. 1999, in ASP Conf. Ser. 169, Proc. 11th European Workshop on White Dwarfs, ed. J.E. Solheim & E. G. Meistas (San Francisco: ASP), 390
3. Evolution of helium white dwarfs with hydrogen envelopes
4. Grids of white dwarf evolutionary models with masses from M = 0.1 to 1.2 m