Shishkin, G. I <br/><br/>
Difference methods for singular perturbation problems 
Grigory I. Shishkin, Lidia P. Shishkina 
 - 1st ed 
 - Boca Raton, FL  CRC Press  2009 
 - xv, 393 p. ; 25 cm 
<br/><br/> Includes bibliographical references and index 
<br/><br/><label>ISBN: </label>9781584884590 
<br/><br/><label>ISSN: </label>2008025636 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Algebra, Abstract<br/>Difference equations - Numerical solutions<br/>Singular perturbations (Mathematics)
<br/><br/><label>Dewey Class. No.: </label>515.392 SHI