Russia) Sot︠s︡ialʹno-ėkologicheskiĭ soi︠u︡z (4th 1992 Ri︠a︡zanʹ

• IV konferent︠s︡ii︠a︡, 5-8 okti︠a︡bri︠a︡ 1992, pansionat "Solotcha" Ri︠a︡zanʹskoĭ oblasti