Sladeckova , A <br/><br/>
International association of theovetical and applied limnology - vol-25, part - 

 -  Stuttgate : E; Schweizer - ba  rt' sche ve1994 
 - xxviii),(1 
<br/><br/><label>ISBN: </label>3-510-54042-5 
<br/><br/><label>Dewey Class. No.: </label>551.48