Siemens AG, Interinfra SA, in Olympic Metro Athens, 6 p

« https://www.archdaily.com/1013428/athens-plans-to-grow-its-metro-infrastructure-by-a-third-to-reduce-automobile-traffic

« https://www.sciencedirect.com/science/article/abs/pii/S0966692301000333

« https://www.sciencedirect.com/science/article/abs/pii/S088677982100050X

« https://www.researchgate.net/publication/235972719_Analysis_of_traffic_corridor_impacts_from_the_introduction_of_the_new_Athens_Metro_system

« https://bakogiannis.eu/images/publications/4.17/4.17.19.pdf

« https://www.researchgate.net/publication/366600016_Evaluating_transport_sustainability_in_metropolitan_Athens_through_a_cable_car_proposal_as_a_partial_alternative_to_the_announced_metro_Line_4

« https://www.athensguide.org/athens-transport.html

« https://liu.diva-portal.org/smash/get/diva2:22794/FULLTEXT01.pdf

« https://urbanistwanderer.com/2023/11/17/athens-metro-line-2-line-3/

« https://digitalcommons.usf.edu/cgi/viewcontent.cgi?article=1162&context=jpt