"Annexes". Network Statement(PDF) (2023 ed.). Athens: Hellenic Railways Organization. 17 January 2023. p. 7. Archived from the original(PDF) on 24 September 2023. Retrieved 24 September 2023.
Chatziioannidou, Efis (31 July 2004). "Και ο προαστιακός σιδηρόδρομος μπήκε σε τροχιά" [And the commuter rail gets on track]. Kathimerini (in Greek). Athens: Kathimerini Publishing. Archived from the original on 14 April 2021. Retrieved 6 August 2024.
ose.gr
"Annexes". Network Statement(PDF) (2023 ed.). Athens: Hellenic Railways Organization. 17 January 2023. p. 7. Archived from the original(PDF) on 24 September 2023. Retrieved 24 September 2023.
Chatziioannidou, Efis (31 July 2004). "Και ο προαστιακός σιδηρόδρομος μπήκε σε τροχιά" [And the commuter rail gets on track]. Kathimerini (in Greek). Athens: Kathimerini Publishing. Archived from the original on 14 April 2021. Retrieved 6 August 2024.