. . . "Joseph Leo \"Joe\" Doob (February 27, 1910 \u2013 June 7, 2004) was an American mathematician, specializing in analysis and probability theory.The theory of martingales was developed by Doob."@en . . . . . "2004Z"^^ . . . . "1910Z"^^ . "Doob, Joseph Leo; Doob, Joe"@en . "Doob, Joseph L."@en . . . . . . . "Joseph L. \"Joe\" Doob"@en . . "Americanmathematician" . "1910-02-27Z"^^ . "2004-06-07Z"^^ . "41906348" . . .