Taagepera, Rein (1979). «Size and Duration of Empires: Growth-Decline Curves, 600 B.C. to 600 A.D.». Social Science History3 (3/4): 129. JSTOR1170959. doi:10.2307/1170959.
jstor.org
Taagepera, Rein (1979). «Size and Duration of Empires: Growth-Decline Curves, 600 B.C. to 600 A.D.». Social Science History3 (3/4): 129. JSTOR1170959. doi:10.2307/1170959.