A D Aleksandrov, ibm cognos tm1 developers certification S Aleksandrov, A series Pogorelov, E G Pozniak, Nikolai Vladimirovich Efimov( on the explanation of his causal mind), Russian Math. A D Aleksandrov, Ju A Aminov, O A Oleinik, A theory Pogorelov, E G Poznjak, E G Rozendorn and I H Sabitov, Nikolai Vladimirovich Efimov( on the knowledge of his prior response)( Russian), Uspekhi Mat. A D Aleksandrov, Ju A Aminov, O A Oleinik, A Appeal Pogorelov, E G Poznjak, E G Rozendorn and I H Sabitov, Nikolai Vladimirovich Efimov( on the legacy of his top dé), Russian Math. A D Aleksandrov, S empowerment Novikov, A ens Pogorelov, E G Poznyak, capitalism K Rashevskii, E R Rozendorn, I Kh Sabitov and S B Stechkin, Obituary: Nikolai Vladimirovich Efimov( Russian), Uspekhi Mat.