Heath, Sir Thomas Little (1910), Diophantus of Alexandria; a study in the history of Greek algebra, Cambridge University Press, pp.  188.
다각수 라그랑주의 네 제곱수 정리 웨어링의 문제 Heath, Sir Thomas Little (1910), Diophantus of Alexandria; a study in the history of Greek algebra, Cambridge University Press, pp. 188.