Berestetskii, V.B. <br/><br/>
Quantum electrodynamics  :course of theoretical physics 
Berestetskii, V.B. 
 - 2nd ed. 
 -  Butterworth-Heinemann  1982 
<br/><br/><label>Dewey Class. No.: </label>537.6  / T05 BER.L