No the prices are in Serbian Dinars, the Russian restaurant is located in Zemun
en.m.wikipedia.org/wiki/Zemun
not far from Hotel Jugoslavija
en.m.wikipedia.org/wiki/Hotel_Jugoslavija
I started off with some Borscht, it was very refreshing, it opened my apetite, after that I had to have some Pelmeni - it's simply fantastic.
For desert I ordered Medovik, a cake with honey, very delicious.