Researches, virtual bibliographies: 

The paper of Ilona Tomova, PhD, from the Institute of Sociology - Bulgarian Academy of Sciences in Sofia, “The Roma in Bulgaria: Education and Employment” states: “Although discriminated, the Roma from the Bulgarian lands haven‘t been deported in death camps during WW2.” (Page 2)

An article “The Bulgarian Gypsies – Searching their Place in the Society” by Elena Marušiakova and Veselin Popov published in Balkanologie review in 2000, states that during World War II the Gypsies in Bulgaria were not sent to concentration camps or subjects to mass annihilation, as happened elsewhere in Europe, nor are there any documents bearing witness to such intentions.

A paper “Good Practices in Roma Education in Bulgaria during the Years of Transition” by Hristo Kyuchukov, published in Intercultural Education, v18 n1 (p29-39) in 2007, mentions that the Bulgarian Ministry of Education has made various changes in legislation which now allow Roma children to receive mother tongue education as well as intercultural education with a focus on Romani language, culture and history.