%0 Journal Article %A E. A. Volkov %A A. K. Kornoukhov %T An approximate conformal mapping of a trapezoid onto a rectangle and its inversion obtained by the block method %J Žurnal vyčislitelʹnoj matematiki i matematičeskoj fiziki %D 1999 %P 1142-1150 %V 39 %N 7 %I mathdoc %U http://geodesic.mathdoc.fr/item/ZVMMF_1999_39_7_a8/ %G ru %F ZVMMF_1999_39_7_a8