TI - Simplifield Chaplygin cosmology: new constraints from angular diameter, baryon acoustic oscillations and CMB PY - 2007 AU - Jesus, J. F AU - Lima, José Ademir Sales de AU - Santos, R. C T2 - International Workshop on Astronomy and Relativistic Astrophysics J2 - III IWARA: Book of Abstracts PP - João Pessoa PB - Universidade Federal da Paraíba ER -