. "Jonathan Kalk"@nl . . . "Jonathan Kalk"@nl . "109684" . . . "Jonathan Kalk"@en . . . "Jonathan Kalk"@ga . . . . . . . . "Ph.D. University of Hawaii 2005"@en . . . . . "Jonathan Kalk"@en . "Jonathan Kalk"@en . "Jonathan Kalk"@ga . "Jonathan Kalk"@ga . "Jonathan Kalk"@nl .