HOWE, Thomas; POPE, Ralph. Detection of Multiple Beta Shifts in Monthly Returns Data. Journal of Finance Issues, [S. l.], v. 4, n. 2, p. 1–14, 2006. DOI: 10.58886/jfi.v4i2.2458. Disponível em: https://jfi-aof.org/index.php/jfi/article/view/2458. Acesso em: 21 may. 2026.