TY  - JOUR
AU  - Sonja Vidojević
AU  - Stevo Šegan
TI  - Observational forms of Astronomical Observatory in Belgrade
JO  - Review of the National Center for Digitization
PY  - 2007
SP  - 59 
VL  - 10
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/NCD_2007_10_a7/
LA  - en
ID  - NCD_2007_10_a7
ER  -