What is "dobrujans"

Dobrujans or Dobrujan Bulgarians (Bulgarian: Добруджанци or Добруджански българи) — also spelled Dobrudžans, Dobrudzans, and Dobrudjans — is a regional, ethnographic group of ethnic Bulgarians, inhabiting or originating from Dobruja. Today, the larger part of this population is concentrated in Southern Dobruja, but much is spread across the whole of Bulgaria and the diaspora. Until the early 1940s, the Dobrujan Bulgarians lived also in the whole of Dobruja, then part of the Ottoman Empire and later Kingdom of Romania. In September 1940, the governments of Bulgaria and Romania agreed a population exchange according to the Treaty of Craiova. The Bulgarian population in Northern Dobruja, was expelled into Bulgaria-controlled Southern Dobruja, today Dobrich Province and Silistra Province.