Original sentence: According to his view, the modern names of Nitra (Slovak Nitra, Hungarian Nyitra and German Neutra) could develop from a "Nitrava" form.He also says that the Latin term "locus Nitrava" could not refer to a city.Imre Boba and Charles Bowlus (who challenged the traditional view of the location of Great Moravia) are among those scholars.Imre Boba says, the Humanist historian, Johannes Aventinus, who identified Nitrava (granted along with Brno and Olomouc by Louis the German, according to Aventinus) with Nitra, because Nitrava was in "Hunia or Avaria", to the south of Bavaria.Kirschbaum and Steinhübel add that the forced unification of the two principalitiesMojmir's Moravia and Pribina's Nitraunder Mojmir gave rise to the empire of Great Moravia.The identification of "Nitra" with "Nitrava" is not universally accepted by scholars
Edited sentence: He also says that none of the modern names of Nitra (Slovak Nitra, Hungarian Nyitra and German Neutra) could develop from a "Nitrava" form.Historian Imre Boba, who refuses the identification, says that the Latin term "locus Nitrava" could not refer to a city.Kirschbaum and  Steinhübel add that the forced unification of the two principalitiesMojmir's Moravia and Pribina's Nitraunder Mojmir gave rise to the empire of Great Moravia.The identification of "Nitra" with "Nitrava" is not universally accepted by scholars, e.controvert historians like Imre Boba or Charles Bowlus whose works were not widely accepted by experted medievalists dealing with the topic and are often target of a sharp criticism (see also further theories)