00338nam a2200121Ia 4500082002000000100004100020245004100061260002700102300001000129490004100139500000500180700003100185  a530.1bAl334.DM  aAlberti, Peter M. and Uhlmann, Armin  aDissipative motion in state spacesb  aLeipzigbTeubnerc1981  a118p.  aTeubner-texte zur Mathematikv v. 33  a  aUhlmann, Armin ; jt. auth.