[Dokumenti iz sekretnite archivi na russkoto pravitelstvo. Politikita na Russiya km Blgariya ot osvobozhdenieto do sega. With an introduction in Russian by D. Petkov.]
Russia. [Appendix. - History & Politics.]
Sofiya, 
1893.
There is also a special titlepage as follows: "Okkupatsionny Fond osnovanny dlya ustroistva Russko-Dunaiskoi Oblasti." Sofiya, 1892.
Wanting the general titlepage.