. . "Official letters by the People's Commissariat for Security Matters, regarding the lack of information concerning the location of Red Army physician Israel Rakovschik and financial help given to his wife Hasya Rakovschik, 1942-1945"@eng . "Official letters by the People's Commissariat for Security Matters, regarding the lack of information concerning the location of Red Army physician Israel Rakovschik and financial help given to his wife Hasya Rakovschik, 1942-1945"@eng . .