1. On some statistical methods in mathematical physics;Bogoliuboff,1945
2. Theory of perturbations in nonlinear mechanics;Bogoliuboff,1950
3. The method of asymptotic approximation for systems with rotating phase and its application to the motion of charged particles in a magnetic field;Bogoliuboff;UMJ,1955
4. On a theorem due to N.N. Bogoliuboff;Gikhman;UMJ,1952
5. On one generalization of N.N. Bogoliuboff's principle of averaging;Demidovich;Rep. USSR Acad. Sci.,1954