. . "R.J Epstein" . . . . "Epstein"@fr-FR . "Jacob"@en . "1954" . . . "Roy J. Epstein"@nl-NL . "R.J" . "Roy"@en . . . . "J." . "Roy Jacob Epstein"@en . "Epstein, Roy J. (Roy Jacob)" . "Roy Jacob" . . "Roy Jacob Epstein" . . "Epstein"@en . . .