%0 Journal Article %A V. A. Iskovskikh %T On the rationality problem for algebraic threefolds %J Informatics and Automation %D 1997 %P 190-232 %V 218 %I mathdoc %U http://geodesic.mathdoc.fr/item/TRSPY_1997_218_a13/ %G ru %F TRSPY_1997_218_a13