Author: Mezhdunarodnai︠a︡ konferent︠s︡ii︠a︡ po matematicheskoĭ logike, posvi︠a︡shchennoĭ 90-letii︠u︡ so dni︠a︡ rozhdenii︠a︡ akademika A.I. Malʹt︠s︡eva (1909-67 gg.) i 275-letii︠u︡ Rossiĭskoĭ akademii nauk (1999? Novosibirsk, Russia?)