?


Vladimir P.
Drachev

University of North Texas (E-Tree)


Max
Born

Edinburgh


Nikolai Nikolayevich
Luzin

Moscow State University (MathTree)


Yuri B.
Rumer

Novosibirsk State University


Alexander K.
Popov

Kirensky Institute of Physics of the Russian Academy of Sciences (Krasnoyarsk) and Krasnoyarsk State University (E-Tree)


?


Ulrich
Hauser

University of Cologne






?


Vladimir
Sechovsky

Charles University, Prague Czech Republic
?




James M.
Cassels

Cambridge






Heinrich
Nakotte

New Mexico State

Andrei K.
Buin

New Mexico State
(Options)

Andrei BuinX