%0 Journal Article %A Yu. K. Shestopaloff %T Properties of sums of some elementary functions and their application to computational and modeling problems %J Žurnal vyčislitelʹnoj matematiki i matematičeskoj fiziki %D 2011 %P 748-761 %V 51 %N 5 %I mathdoc %U http://geodesic.mathdoc.fr/item/ZVMMF_2011_51_5_a1/ %G en %F ZVMMF_2011_51_5_a1