R. Kent Nagle/ Edward B. Saff/ Arthur David Snider
(8)
Luis Manuel (University of Lisbon Braga da Costa Campos Portugal)
(7)
Luis Manuel Braga Da Costa Campos
(6)
Boyce (COR)/ Richard C. DiPrima
(5)
Achim Ilchmann (EDT)/ Timo Reis (EDT)
(4)
C. Henry Edwards/ David E. Penney/ David Calvis
(4)