– December 19, 2003 at the State University of Management (SUM) he defended his thesis for the degree of candidate of historical sciences. Topic: "The overthrow of the monarchy in Russia in 1917 and the Orthodox Church" (specialty 07.00.02 - Domestic history).
– October 17, 2007 at the IPPK Moscow State University. M.V. Lomonosov defended his dissertation for the degree of Doctor of Historical Sciences. Topic: “The Russian Orthodox Church at the beginning of the 20th century. and its attitude to the overthrow of tsarist power in Russia” (specialty 07.00.02).