Não informado. (2008). Communications of the Department of Chemistry. Bulgarian Academy of Sciences.
Lua i Stíl Chicago (17ú heag.)Não informado. Communications of the Department of Chemistry. Sofia: Bulgarian Academy of Sciences, 2008.
Lua MLA (8ú heag.)Não informado. Communications of the Department of Chemistry. Bulgarian Academy of Sciences, 2008.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.