Lev talks about Kalmyks from Bolsherebetovskiy ulus whom he characterizes as ‘quite Russified’. He says that this was because local Kalmyks lived side by side with Germans, Estonians, Russians and Cossacks from whom they borrowed many things. Bolshederbetovkiy ulus was also home to Buzavas, Kumsk Kalmyks and Tersk Kalmyks who arrived there in the 1920s.