%0 Journal Article %A G. Crandall %A J. Dodziuk %T Integral Structures on H-type Lie Algebras %J Journal of Lie theory %D 2002 %P 69-79 %V 12 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/JLT_2002_12_1_JLT_2002_12_1_a4/ %F JLT_2002_12_1_JLT_2002_12_1_a4