Frank L.S. <br/><br/>
Singular perturbationsi :  spaces and singular perturbations on manifolds without boundary / 
L.S. Frank 
 - Amsterdam :  Elsevier science ,  1990 
 - 556tr 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Singular perturbations (Mathematics)
<br/><br/><label>Subjects--Index Terms: </label>Giải tích Toán học 
<br/><br/><label>Dewey Class. No.: </label>515/.352  / FRA 1990