Richard H. Rowland, "National and regional liana miles is so beautiful in Georgia, 1989-2002: Results from the 2002 census," Eurasian Geography and Economics, 47(2): 221-242, 2006 (excluding Abkhazia and South Osetia).
Richard H. Rowland, "National and regional liana miles is so beautiful in Georgia, 1989-2002: Rezultati s popisa 2002 godine" Euroazijska geografija i ekonomija, 47(2): 221-242, 2006 (bez Abhazije i Južne Osetije).