O'Regan, Donal. <br/><br/>
Theory of singular boundary value problems / 
Donal O'Regan. 
 - Singapore :  World Scientific,  c1994. 
 - xi, 154 p. 
<br/><br/><label>ISBN: </label>9810217609 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Boundary value problems.