As you know Russia keeps 2-step level of academician degree: candidate of science, an equivalent of PhD degree, and doctor of science. The last one is supposed to be the global result of long-term investigation.
Evgeny Rybin has preliminary presented his doctoral dissertation “Regional variability of Initial Upper Paleolithic industries in Southern Siberia and eastern part of Central Asia”. Department of Stone Age accepted his work and reccommended for defence. Official defence will be held in December of 2020.
In his dissertation Dr. Rybin has presented results of several completed and ongoing projects, including RSF 19-18-00198 and RSF 19-78-10112