Slovak geological magazine : the special issue. 

 -  State Geological Institute of Dionyz Stur,   2008. 
 - 81 p. :  fig. 
<br/><br/> Bibliogr. after articles. 
<br/><br/><label>ISBN: </label>97880089343225 
<br/><br/><label>Universal Decimal Class. No.: </label>55(437.6)