%0 Journal Article %A Schwermer, Joachim %T On arithmetic quotients of the Siegel upper half space of degree two %J Compositio Mathematica %D 1986 %P 233-258 %V 58 %N 2 %I Martinus Nijhoff Publishers %U http://archive.numdam.org/item/CM_1986__58_2_233_0/ %G en %F CM_1986__58_2_233_0