More seriously, this question is how he pronounced his own name; and a clue might be given by how it appeared in print in Russian articles authored by him. If that final vowel had two dots over it ("e kratkoye"), then it would be pronounced "yo" and the last syllable would be accented. If not, it would be pronounced "yeh", and the last syllable would probably have a secondary accent (with the primary accent on the first syllable). I do not recall the actuality.
Also, I think the middle vowel is the one pronounced a little like "ooey" (but be subtle about it).
This reminds me a little of a small village in Ghana, where even the villagers could not seem to agree on the pronunciation of their home, "Nkwantapong". How would you pronounce it? WH (Nkosoohene, Nkwantapong)