%0 Journal Article %A Altafini, C. %T On the exact unitary integration of time-varying quantum Liouville equations. %J Rendiconti del seminario matematico %D 2005 %P 305-314 %V 63 %N 4 %I mathdoc %U http://geodesic.mathdoc.fr/item/RSM_2005__63_4_116767/ %G en %F RSM_2005__63_4_116767