The Collaborative International Dictionary of English v.0.48:

Dostoevski \Dostoevski\, Dostoyevski \Dostoyevski\prop. n.
   Russian author Fyodor Mikhailovich Dostoevski; born 1821,
   died 1881.

   Syn: Fyodor Mikhailovich Dostoevski.
        [WordNet 1.5] Dostoevskian