@article{JSFU_2022_15_5_a13,
     author = {Mallikarjun G. Shrigan},
     title = {Second {Hankel} determinant for bi-univalent functions associated with $q$-differential operator},
     journal = {\v{Z}urnal Sibirskogo federalʹnogo universiteta. Matematika i fizika},
     pages = {663--671},
     publisher = {mathdoc},
     volume = {15},
     number = {5},
     year = {2022},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/JSFU_2022_15_5_a13/}
}