Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Russian names

I was thoroughly enjoying the novel until the author's choice of Russian names for Victor Fyodorov's brothers: Dimitri and Mikal. It has always been Dmitri,and I have never known a Russian Mikal. I would have thought they were from a different part of Russia if the author did not mention they were from Leningrad. I would love to find out the story behind this choice.