"Materials specialist Frederick John Humphreys" . . . "John" . "Humphreys, F.J. (Frederick John)" . "John F. Humphreys" . . "Humphreys, F. J. Materials specialist" . "F." . "John Humphreys" . . . "F. J Humphreys"@ja-JP . . "F."@en . "F J. Humphreys" . "Frederick" . . . . "F" . . "Humphreys, F. J. Werkstoffkundler" . "F. John Humphreys" . "Humphreys"@en . "F.J. Humphreys"@nl-NL . "John Humphreys" . "Humphreys"@fr-FR . . "Werkstoffkundler Frederick John Humphreys" . "John" . "Humphreys, F. J. (F. John)" . . "Frederick John Humphreys"@fr-FR . "Spécialiste en science des matériaux Frederick John Humphreys" . "F. J. Humphreys"@en . "F.J Humphreys" . "Humphreys, F. J. (Frederick John)" . "Humphreys, F. J. Spécialiste en science des matériaux" . "J."@en . "F.J" . "F. J." . "Humphreys, F.J. Werkstoffkundler" . "F. J. Humphreys" . . .