and S. J. Kleinman. arXiv:astro-ph/0610746. The Elemental Abundances in Bare Planetary Nebula Central Stars and the Shell Burning in AGB Stars (页面存档备份,存于互联网档案馆)
structure components on the occurrence, group size and density of groups of bare-face tamarin (Saguinus bicolor – Primates: Callitrichinae) in Central Amazonia
Bibcode:1979A&AS...36..337E. Werner, K.; Herwig, F. The Elemental Abundances in Bare Planetary Nebula Central Stars and the Shell Burning in AGB Stars. Publications