%0 Journal Article %A Chakraborty, Kalyan %A Hoque, Azizul %T Exponent of class group of certain imaginary quadratic fields %J Czechoslovak Mathematical Journal %D 2020 %P 1167-1178 %V 70 %N 4 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.21136/CMJ.2020.0289-19/ %R 10.21136/CMJ.2020.0289-19 %G en %F 10_21136_CMJ_2020_0289_19