"R." . . "BLUM" . . "Rudolf" . "Rudolf BLUM" . "Blum"@fr-FR . . . "بلوم، رودلف،" . . . . "Blum" . . "بلوم، رودلف،" . "R. Bli︠u︡m" . "BLUM, Rudolf (Economist)" . . . "Bli︠u︡m" . "1998-01-18" . "R. Blum" . . "Rudolf Blum" . "Bibliographer Rudolf BLUM" . "Rudolf Blum"@es-ES . . . . . . "BLUM, Rudolf, Bibliographer" . "(Economist) Rudolf BLUM" . "1909-10-26" . . . . "بلوم، رودلف،" . . . .