%0 Journal Article %A A. Ivić %T Hardy's function $Z(t)$: Results and problems %J Trudy Matematicheskogo Instituta imeni V.A. Steklova %D 2017 %P 111-122 %V 296 %I mathdoc %U http://geodesic.mathdoc.fr/item/TM_2017_296_a7/ %G ru %F TM_2017_296_a7