(页面存档备份,存于互联网档案馆) Greater Cleveland Regional Transit Authority - Maps and Schedules(页面存档备份,存于互联网档案馆) Jon Bell - Cleveland, Ohio: Red Line (页面存档备份,存于互联网档案馆)
S2CID 134924657. doi:10.1007/s13358-018-0153-1. Frauenfelder, Timothy G.; Bell, Phil R.; Brougham, Tom; Bevitt, Joseph J.; Bicknell, Russell D. C.; Kear