Higgins J R <br/><br/>
Completeness and basis properties of sets of special functions. 
Higgins J R 
 -  1972 
<br/><br/><label>Standard No.: </label>126046 
<br/><br/><label>Source: </label> Textual 
<br/><br/><label>Dewey Class. No.: </label>B39, L7