%0 Journal Article %A Hidehisa Naganuma %T On the Theta Constant of Genus 8 and Hilbert Modular Groups over Certain Cyclic Biquadratic Fields. %J Mathematische Annalen %D 1987 %P 185-192 %V 278 %I mathdoc %U http://geodesic.mathdoc.fr/item/MAN_1987__278_164288/ %F MAN_1987__278_164288