Du Plessis, Nicolaas. <br/><br/>
An introduction to potential theory / 
Nicolaas Du Plessis. 
 - Edinburgh :  Oliver and Boyd,  1970. 
 - viii, 177 p. ;  24 cm. 
<br/><br/>Bibliography: p. 175. 
<br/><br/><label>ISBN: </label>0050020544 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Potential theory (Mathematics).<br/>Harmonic functions.<br/>Dirichlet problem.