Gajdidej, Yu. B. <br/><br/>
On the origin of energy gap in the spectrum of spin vawes of the 2nd easy-plane antiferrogaments   preprint ITP-81-23 E /  
Yu. B. Gaididei, V. M. Loktev ; Academy of Sciences of Ukrainian SSR, Institute for Theoretical Physics. 
 - Kiev,   1981. 
 - 10 p.  
<br/><br/>Bibliography: p. 10. 
<br/><br/><label>Subjects--Index Terms: </label>ფიზიკა 
<br/><br/><label>Universal Decimal Class. No.: </label>53