Abstracts of bulgarian scientific literature: mathematics, physics, astronomy, geophysics, geodesy/ 
Bulgarian Academy of Sciences 
 - Sofia :  Sofia, 
 - Semestral 
<br/><br/><label>ISSN: </label>0001-351X 
 = Abstracts of bulgarian scientific literature: mathematics, physics, astronomy, geophysics, geodesy 
 = Abstr. Bulg. Sci. Lit., Math., Phys., Astron., Geophys., Geod. 
<br/><br/><label>Subjects--Index Terms: </label>CIENCIAS EN GENERAL BIBLIOGRAFIA;  INDICES