Bjork, Jan-Erik. <br/><br/>
Rings of differential operators/ 
J.-E. Björk. 
 - Amsterdam ;  New York:  New York:  North-Holland,  Sole distributors for the U.S.A. and Canada, Elsevier/North-Holland,  1979. 
 - xvii, 374 p. ;  23 cm. 
 - North-Holland mathematical library  v. 21. .
<br/><br/>Includes bibliographies and index. 
<br/><br/><label>ISBN: </label>0444852921 
<br/><br/><label>LCCN: </label>79000135 //r87 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Differential operators.<br/>Rings (Algebra)
<br/><br/><label>Dewey Class. No.: </label>515.35  / B626r