University of Helsinki, Department of Physics :  2006 : Annual report. 

 - Helsinki :   University of Helsinki. 
 - v. 
<br/><br/><label>ISSN: </label>0781-4038 
<br/><br/><label>Subjects--Index Terms: </label>ფიზიკა პერიოდიკა 
<br/><br/><label>Universal Decimal Class. No.: </label>06