Stratospheric Observatory
Stratospheric Observatory
http://www.sofia.usra.edu/
Univerity of Sofia
Univerity of Sofia
http://www.uni-sofia.bg/
University of Forestry
A complete guide to graduate and postgraduate programmes offered by the universities in central and eastern europe and the cis
http://www.ceebd.co.uk/ceeed/un/bg/bg012.htm