A/52/498 English Page 7 various forms of racial discrimination, including the Law on Names of Bulgarian Citizens, which ensured the possibility of the use of non-Slavic names. The Committee expressed concern about the enjoyment of economic, social and cultural rights of the Roma, whose vulnerability had increased in the context of the current economic crisis. The Committee also expressed its concerned that Bulgaria prohibited the foundation and registration of political parties formed on, inter alia, ethnic or religious bases. The Committee recommended that Bulgaria pay greater attention to the protection of the Roma's civil, political, economic, social and cultural rights; that any de facto segregation of minorities be prevented; and that comprehensive human rights training be provided to all segments of the population with a view to combating negative attitudes and prejudices towards minorities. D. Committee on the Rights of the Child 27. In its concluding observations on the report of Paraguay (CRC/C/15/Add.75), the Committee expressed concern that adequate measures had not yet been taken to fully guarantee in practice the right of indigenous students to education in their native language, Guarani, and recommended that the authorities guarantee the full implementation of the right of children to education in their own language. 28. In its concluding observations on the report of Algeria (CRC/C/15/Add.76), the Committee regretted the absence of information on the teaching programmes for nomadic children, who should be able to benefit from the provisions of article 30 on the rights of minority children. It recommended that specific measures be taken to ensure that children belonging to minorities might, in particular, benefit from the right to enjoy their own culture in accordance with article 30. V. SPECIAL RAPPORTEURS, SPECIAL REPRESENTATIVES AND WORKING GROUPS OF THE COMMISSION ON HUMAN RIGHTS 29. In a number of cases, special rapporteurs and special representatives appointed by the Commission on Human Rights or by the Secretary-General, respectively, have addressed the rights of persons belonging to national or ethnic, religious and linguistic minorities. The working groups of the Commission on Human Rights also address situations involving minorities. Special Rapporteur on the situation of human rights in the State of Bosnia and Herzegovina, the Republic of Croatia and the Federal Republic of Yugoslavia (Serbia and Montenegro) 30. The former Special Rapporteur on the situation of human rights in the territory of former Yugoslavia, Ms. Elisabeth Rehn, in her special report on minorities (E/CN.4/1997/8), noted that Governments of the territory of former Yugoslavia continued to be accused of marginalizing and repressing minority populations, and that the participation of minorities in public affairs throughout the region was limited (para. 2). Her report concentrated on two countries dominated by people of one national group - the Federal Republic of /...