"American opera singer" . "Russel" . . "R. Christopher" . "Christopher"@fr-FR . "2014-11-09" . "Russel Christopher" . . . . "Christopher" . "Russell" . . "R." . "Russel Christopher" . "راسل کریستوفر" . "Russell Christopher"@cs-CZ . . . . "1930-03-12" . . . . . .