%0 Journal Article %A E. V. Shkarupa %T A~functional random walk-on-grid algorithm for the biharmonic equation. The error estimation and optimization %J Sibirskij žurnal vyčislitelʹnoj matematiki %D 2005 %P 163-176 %V 8 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/SJVM_2005_8_2_a6/ %G ru %F SJVM_2005_8_2_a6