Bourne, Edward G. (1887). "The Derivation of Stamboul". American Journal of Philology. The Johns Hopkins University Press. 8 (1): 78–82. doi:10.2307/287478. JSTOR287478.
Bourne, Edward G. (1887). "The Derivation of Stamboul". American Journal of Philology. The Johns Hopkins University Press. 8 (1): 78–82. doi:10.2307/287478. JSTOR287478.