Eastern Orthodox but a minority of Muslim Romani exists (notably recent refugees from Kosovo), mainly in the southern parts of Serbia. Romani people in multi-ethnic Vojvodina are integrated with other ethnic groups, especially with Serbs, Romanians and Hungarians. For this reason, depending on the group with which they are integrated, Romani are usually referred to as Serbian Romani, Romanian Romani, Hungarian Romani, etc. The majority of Romani people are Christian and a minority are Muslim. They speak mainly Romani and Serbian. Some also speak the language of other people they have been influenced by: Romanian, Hungarian or Albanian. Đurđevdan (or Ederlezi) is a traditional feast day of Romani in Serbia. In October 2005 the first text on the grammar of the Romani language in Serbia was published by linguist Rajko Đurić, titled Gramatika e Rromane čhibaki - Граматика ромског језика. Demographics There are 147,604 Romani people in Serbia, but unofficial estimates put the figure up to 450,000-550,000. Between 23,000-100,000 Serbian Roma are internally displaced persons from Kosovo. Discrimination A large number of Serbian Roma people live in slums, and so-called "cardboard cities". Many Roma children never go to school. On 3 April 2009, a group of Romani people who had been living in an unlawful settlement in Novi Beograd were evicted on the orders of the mayor of Belgrade. According to the press, bulldozers accompanied by police officers arrived to clear the site early in the morning before the formal eviction notice was presented to the community. The makeshift dwellings were torn apart while their former occupants watched. The site was cleared in order to make way for an access road to the site of the 2009 Student Games, to be held in Belgrade later this year. Temporary alternative accommodation in the form of containers had apparently been provided by the Mayor of Belgrade, but some 50 residents of the suburb where they had been located attempted to set fire to three of the containers. Many of the evicted Roma have spent five nights sleeping in the open in the absence of any alternative accommodation. There have been incidents of FK Rad hooligan (and skinhead) attacks on Roma, such as the death of thirteen-year-old Dušan Jovanović (1997), and also the death of actor Dragan Maksimović, who was assumed to be Romani (2001). Due to a record of discrimination, human rights reporting mechanisms have consistently drawn attention to the treatment of