Kophu Chiang
Raymond John Beach
Ying Chih Chen
Vitaly V. Samartsev
V. A. Golenishchev-Kutuzov
Manykin, Ė. A.
O. N. Gadomskiĭ
I. V. Evseev
Arjun Gaurang Yodh
Edward Anthony Whittaker
R.S.F.S.R.)) Vsesoi͡uznyĭ simpozium Svetovoe ėkho i puti ego prakticheskikh primeneniĭ (4th 1989 Kuĭbyshev (Kuĭbyshevskai͡a oblastʹ
Patrick Hung-sun Hu
Vsesoi͡uznyĭ simpozium po svetovomu ėkho (2nd 1981 Kazanʹ, R.S.F.S.R.)
Emil Yi-xie Xu
Norman A. Kurnit
PECS 2001 (2001 Novgorod, Russia)
PECS 2005 (8th 2005 Korolev, Russia)
Moi Bon Leong
S. V. Petrushkin
Suresh Chandra