Tovmasyan N.E. <br/><br/>
Non-Regular Differential Equations and Calculations of Electromagnetic Fields 
Tovmasyan N.E. 
 - Singapore etc.  World Scientific  1998 
 - 235 p. 
<br/><br/> Edit.Gevorkyan L.Z. a.o. 
<br/><br/><label>Dewey Class. No.: </label>517.955