Did you mean: Ludlum, Robert, 1927-2001 Ludlum, Robert, 1927-2001. Altman code. Ludlum, Robert, 1927-2001. Covert-One novels. Ludlum, Robert, 1927-2001. Ludlum, Robert, 1927-2001 Ludlum, Robert, 1927-2001. Ludlum, Robert, 1927-2001 Ludlum, Robert, 1927-2001.