. . "W." . "Wim"@en . "Johan Wim Derksen" . . "Derksen, W. (Johan Wim)" . . "Wim Derksen" . . "W." . "Johan Wim" . . "Derksen"@en . "W. Derksen"@nl-NL . "Johan W. Derksen" . "Derksen, W. (Wim)" . . "W. Derksen" . "1952" . "Wim" . . "Derksen"@fr-FR . "Wim Derksen"@en . "Johan" . . "Johan Wim Derksen" .