G.M. Veca, L. Villanti, Dept of Electrical Engineering University « La Sapienza » of Rome in Urban Transport and the Environment for the 21st Century, 10 p.

« / » https://www.witpress.com/Secure/elibrary/papers/UT00/UT00002FU.pdf

« / » https://www.researchgate.net/profile/Marcin-Wolek/publication/274698417_The_Trolleybus_as_an_Urban_Means_of_Transport_in_the_Light_of_the_Trolley_Project/links/5525680a0cf295bf160e7fe8/The-Trolleybus-as-an-Urban-Means-of-Transport-in-the-Light-of-the-Trolley-Project.pdf

« / » https://www.mdpi.com/2071-1050/12/22/9744

« / » https://www.sciencedirect.com/science/article/abs/pii/S0378779614000716

« / » https://www.sciencedirect.com/science/article/abs/pii/S0739885920300135

« / » https://onlinepubs.trb.org/Onlinepubs/trr/1995/1503/1503-009.pdf

« / » https://www.adb.org/sites/default/files/project-documents/50010/50010-002-emr-en_1.pdf

« / » https://www.transportenvironment.org/wp-content/uploads/2021/07/Electric-buses-arrive-on-time-1.pdf

« / » http://www.trolley-project.eu/fileadmin/user_upload/Outputs/TROLLEY_PR6_Take_up_Guide_Core_Output_4.3.8_Annex_146_PP05_LVB.pdf

« / » https://www.edmonton.ca/public-files/assets/document?path=transit/ets_electric_feasibility_study.pdf