Anosov, D. V. and Bolibruch, A. A. <br/><br/>
The Riemann-Hilbert problem   

 - Weisbaden  Vieweg  1994 
 - ix, 190p. Bibl. Index. 
 - Aspects of mathematics    Vol.22 .
<br/><br/> A publication from the Steklov Institute of Mathematics   
<br/><br/><label>ISBN: </label>352806496X 
<br/><br/><label>Dewey Class. No.: </label>516  / An615.RH