He now works in the Institute for Contemporary History at the Czech Academy of Science in Brno.[3] He wrote many books and papers about Moravian, Czech and Czechoslovak history in the 19th and 20th centuries.
In 2010, he was dismissed from his position as director of the Institute for the Study of Totalitarian Regimes after allegations that he had plagiarized large portions of his 1997 book about Emanuel Moravec from another person's doctoral dissertation.[4][5] Pernes said that he had never knowingly copied the work of others.[4]
^Pánek, Jaroslav; Vorel, Petr, et al. Lexikon současných českých historiků. Prague ; Pardubice : Historický ústav Akademie věd České republiky ; Sdružení historiků České republiky (Historický klub) ; Východočeské muzeum, 1999. 373 s. ISBN80-85268-84-1.