Mathematical Structures. Computational Mathematics. Mathematical Modelling. Papers dedicated to Prof. L. Iliev's 60th Anniversary. 

 - Sofia  Publ. House of the Bulgarian Acad. of Sci.  1975 
 - 542 p. 
<br/><br/> Bulgarian Academy of Sciences Center for Research and Training in Mathematics and Mechanics 
<br/><br/><label>Dewey Class. No.: </label>519.6