Bove, A., et al <br/><br/>
Propagation of singularities for fuchsian operators 
A. Bove, et al 
 - Berlin  Springer  1983 
 - 160 
 - Lecture notes in mathematics 984 .
<br/><br/><label>ISBN: </label>3540122850 
<br/><br/><label>Dewey Class. No.: </label>10.05+22  / BOVE