What is rossiiskaia akademiia nauk?

Some articles on nauk, rossiiskaia akademiia nauk:

Natalia Zhukovskaia - Major Works
... Dar k 80 letiiu doktora istoricheskikh nauk Anny Vasil'evny Smoli'a'k ... Moskva Rossiiskaia akademiia nauk, Int ... Moskva Rossiiskaia akademiia nauk, Int ...