JANAS, Karol - KUCHARČÍK, Rudolf. Activities of the Union of Gypsies (Roma) in Slovakia in 1968-1973 as an Attempt to Help with Gypsy (Roma) Issues. - Registrovaný: Web of Science. In SGEM conference on political sciences, law, finance, economics and tourism. International multidisciplinary scientific conferences on social sciences and arts. SGEM conference on political sciences, law, finance, economics and tourism : international multidisciplinary scientific conferences on social sciences and arts, 1-10 September, 2014, Albena, Bulgaria. - Sofia, Bulgaria : STEF92 Technology, 2014. ISBN 978-619-7105-25-4, pp. 15-20.