Dispersion sum rules for the amplitudes of radiative transitions in quarkonium / 
A.Yu. Khodjamirian; Yerevan Physics Institute. 
 - Yerevan :  S. n.,  1979. 
 - 22 p. ;  20 cm. 
 - 53.01 (NLA) .
<br/><br/><label>Universal Decimal Class. No.: </label>53.01 (NLA)