Uhlmann, Arwin. <br/><br/>
Stochastricity and partial order, doubly stochastic maps and unitary mixing   
by Arwin Uhlmann , M. Peter Alberti 
 - Holland  D. Reidel Publishing Company  1982 
 - 123p. 
 - Mathematics and its applications  V.9 .
<br/><br/><label>ISBN: </label>9027713502 
<br/><br/><label>Dewey Class. No.: </label>530.15  / N82