Vasil'eva, A.B (ed) <br/><br/>
Boundary function method for singular perturbation problems 
Ed by A.B. Vasil'eva 
 - Philadelphia  SIAM  1995 
 - xiii  221 
 - SIAM studies in applied mathematics 14 .
<br/><br/><label>ISBN: </label>0-89871-333-1 
<br/><br/><label>Dewey Class. No.: </label>4.04+10.01+10.02  / VASI