Bulhari na Slovensku. Etnokultúrne charakteristiky a súvislosti. Štúdie [Bulgarians in Slovakia. Ethnocultural characteristics and relations. Papers]. Ed. E. KREKOVIČOVÁ, V. PENČEV. Bratislava: Veda, Institute of ethnology SAS, 2005. ISBN 80-224-0890-5, 200 pp. (Published in 2006)