Ivashchuk, V.D. <br/><br/>
DUALLY-CHARGED MESOATOM ON THE SPACE OF CONSTANT NEGATIVE CURVATURE. 

 - Rio de Janeiro :  CBPF,  1993. 
 - 11 p. 
<br/><br/><label>ISSN: </label>0029-3865 
<br/><br/><label>Standard No.: </label>CBPF-NF-040-93