David Cass/ Stephen Spear (EDT)/ William A. Barnett (EDT)
(2)
Fredj Jawadi (EDT)/ William A. Barnett (EDT)
(2)
William A. Barnett (EDT)/ Bruno S. Sergi (EDT)
(2)
;Barnett, William A. (University of Kansas, USA),Sergi, Bruno S. (Harvard University, USA)
(2)
Fredj Jawadi (EDT)/ William Barnett (EDT)
(1)