Bosnian is one of the standard versions of the Central-South Slavic diasystem, based on the Štokavian dialect. The language is used by Bosniaks in Bosnia and Herzegovina, the region of Sandžak (in Serbia and Montenegro) and elsewhere. It is based on the Western variant of the Shtokavian dialect and uses both the Latin and Cyrillic alphabets, although Latin is used to the almost total exclusion of Cyrillic. The spoken language may not differ at all from the Serbian and Croatian spoken by the Bosniaks’ Serb and Croat neighbours. The name Bosnian language is the commonly accepted name among Bosniak linguists, and the name used by the ISO-639 standard.