%0 Journal Article %A Mallikarjun G. Shrigan %T Second Hankel determinant for bi-univalent functions associated with $q$-differential operator %J Žurnal Sibirskogo federalʹnogo universiteta. Matematika i fizika %D 2022 %P 663-671 %V 15 %N 5 %I mathdoc %U http://geodesic.mathdoc.fr/item/JSFU_2022_15_5_a13/ %G en %F JSFU_2022_15_5_a13