fragment 1
C.I.G. Ital. et Sic. 1292. ii. 11
... the Story of Oedipus by Kinaethon in six thousand six hundred verses.
fragment 2
Pausanius ix. 5.10
Judging by Homer I do not believe that Oedipus had children by Iokasta; his sons were born of Euryganeia as the writer of the Epic called the Story of Oedipus clearly shows.
fragment 3
Schol. on Eur. Phoen., 1750
The authors of the Story of Oedipus [say] of the Sphinx: "But furthermore [she killed] noble Haemon, the dear son of blameless Kreon, the comeliest and loveliest of boys."