Gulbekian, Edward (1987). „The origin and value of the stadion unit used by Eratosthenes in the third century B.C.”. Archive for History of Exact Sciences. 37 (4): 359—363. S2CID115314003. doi:10.1007/BF00417008..
Gulbekian, Edward (1987). „The origin and value of the stadion unit used by Eratosthenes in the third century B.C.”. Archive for History of Exact Sciences. 37 (4): 359—363. S2CID115314003. doi:10.1007/BF00417008..
Gulbekian, Edward (1987). „The origin and value of the stadion unit used by Eratosthenes in the third century B.C.”. Archive for History of Exact Sciences. 37 (4): 359—363. S2CID115314003. doi:10.1007/BF00417008..
Gulbekian, Edward (1987). „The origin and value of the stadion unit used by Eratosthenes in the third century B.C.”. Archive for History of Exact Sciences. 37 (4): 359—363. S2CID115314003. doi:10.1007/BF00417008..
Gulbekian, Edward (1987). „The origin and value of the stadion unit used by Eratosthenes in the third century B.C.”. Archive for History of Exact Sciences. 37 (4): 359—363. S2CID115314003. doi:10.1007/BF00417008..
Gulbekian, Edward (1987). „The origin and value of the stadion unit used by Eratosthenes in the third century B.C.”. Archive for History of Exact Sciences. 37 (4): 359—363. S2CID115314003. doi:10.1007/BF00417008..