Blatter, Jürg, and Andreas Fuchs. 1998. “Fully Electrical Human-Power Transmission for Ultra-lightweight Vehicles.” Paper presented at the Extra-Energy Symposium, IFMass, Koln, Germany. “ Not available online, see alternatively: https://sites.google.com/site/serieshybridbikes/
Berto, Frank, Ron Shepherd, and Raymond Henry. 2000. The Dancing Chain—History and Development of the Derailleur Bicycle. http://web.archive.org/web/20190113222335/http://www.thedancingchain.com/
Bolen, Rachel, and Mark Archibald. 2017. “An Experimental Study on the Efficiency of Bicycle Transmissions.” Paper presented at the American Society for Engineering Education Zone 2 Spring Conference, “Engineering Everywhere for Everyone,” San Juan, Puerto Rico, March 2–5. http://zone2.asee.org/papers/proceedings/3/78.pdf
Brooks “Retrogrouch.” 2016. “New Is Old Again: Expanding Chainring Cranks.” The Retrogrouch (blog). January 11, 2016. http://bikeretrogrouch.blogspot.com/2016/01/new-is-old-again-expanding-chainring.html
Brown, Sheldon. 2008. “The Sturmey-Archer ASC Fixed-Gear Three-Speed Hub.” Harris Cyclery (website). https://www.sheldonbrown.com/asc.html
Bucher, Clemens. 1998. “Recumbent with Encapsulated Drive Train.” Paper presented at the Third European Seminar on Velomobile Design, Rosskilde, Denmark. https://velomobileseminars.online
Cameron, Angus. 1998–99. “Measuring Drive-Train Efficiency.” Human Power no. 46 (Winter): 5–7. http://www.ihpva.org/HParchive/PDF/hp47-n46-1998.pdf
CeramicSpeed. 2018. “Driven—The World’s Most Efficient Drivetrain.” Ceramic Speed, Holstebro, Denmark. https://www.ceramicspeed.com/media/2979/driven_brochure.pdf
Continental Bicycle Systems. 2018. “Belt Drive.” Continental Bicycle Systems, Eschborn, Germany. http://www.continental-bicycle-systems.com/Ebikes/Belt-Drive
Corno, Matteo, Daniele Berretta, and Sergio M. Savaresi. 2015. “Human Machine Interfacing Issues in SeNZA, a Series Hybrid Electric Bicycle.” Proceedings of the American Control Conference 2015: 1149–54.https://www.researchgate.net/publication/283439648
Denham, Alee. 2017. “What’s the Difference in Speed between Gearbox Systems?” Cycling About (website). https://www.cyclingabout.com/speed-difference-testing-gearbox-systems/
Fluid Power Vehicle Challenge. 2018. “Meet the Teams.” National Fluid Power Association, Milwaukee, WI. http://nfpahub.com/fpc/vehicle-challenge/meet-the-teams-fpvc/
Fuchs, Andreas. 2008. “Series Hybrid Drive-System: Advantages for Velomobiles.” Human Power eJournal no. 5: art. 15. http://hupi.org/HPeJ/0015/0015.htm
Garnet, Jeremy. 2008. “Ergonomics of Direct-Drive Recumbent Bicycles.” Human Power eJournal no. 5: art. 17. http://hupi.org/HPeJ/0017/0017.htm
González, Fernando Álvarez. 2014. “High Efficiency Electric Generator for Chain-Less Bicycle.” Thesis, Universidad de Oviedo, Asturias, Spain. https://core.ac.uk/display/71868094
Henshaw, Peter. 2018. “Tested—The Amazing Super-power Gulas.” A to B magazine no. 119. http://www.atob.org.uk/product/atob-119-digital/
Idemitsu Kosan Company. 2018. “TDF (Traction Drive Fluid).” Idemitsu Kosan Company, Tokyo, Japan. http://web.archive.org/web/20180719152110/http://www.idemitsu.com/products/lubricants/tdf/index.html
Kidd, Matthew D. 2000. “Bicycle-Chain Efficiency.” Ph.D. diss., Department of Mechanical Engineering, Heriot-Watt University, Edinburgh, Scotland. https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.313628
kmpres. 2016. “How to Rebuild a BionX E-Bike Lithium-Ion Battery Pack.” Instructables (website). https://www.instructables.com/id/How-to-Rebuild-a-BionX-E-Bike-Battery-Pack/
Kanehira, Makoto. 1995. “The Complete Guide to Chain.” Tsubaki, U.S (Inc). http://chain-guide.com/basics/2-2-1-chordal-action.html; http://tsubaki.ca/pdf/library/the_Complete_guide_to_chain.pdf
Könekamp, Andreas. 1998–99. “The Phantom Trailer.” Human Power no. 46 (Winter): 3–4. http://www.ihpva.org/HParchive/PDF/hp47-n46-1998.pdf
Kretschmer, Thomas. 1999–2000. “Direct-Drive (Chainless) Recumbent Bicycles.” Human Power no. 49 (Winter): 11–14. http://www.ihpva.org/HParchive/PDF/hp49-1999.pdf
Kyle, Chester R., and Frank Berto. 2001. “The Mechanical Efficiency of Bicycle Derailleur and Hub-Gear Transmissions.” Human Power no. 52 (Summer): 3–11. http://www.ihpva.org/HParchive/PDF/hp52-2001.pdf
Kutzke, Harald, A. Fuchs, and H. Neupert. 2012. “An Overview of the Most Significant Milestones for Series Hybrid Pedelecs.” ExtraEnergy Pedelec and E-Bike Magazine no. 12: 33–42. http://extraenergy.org/main.php?id=79314
Loewenthal, S. H., D. A. Rohn, and N. E. Anderson. 1983. “Advances in Traction-Drive Technology.” Technical Memorandum 83397, National Aeronautics and Space Administration, Washington, DC. http://hdl.handle.net/2060/19830020184
McGurn, James. 1987. On Your Bicycle: An Illustrated History of Bicycling. London: Murray. https://archive.org/details/onyourbicycleill0000mcgu
Nurse, Stephen. 2019. “In-Hub Gearbox Front Wheel Drive Cycles.” Human Power eJournal no. 11: art. 26. http://hupi.org/HpeJ/0026/0026.htm
Oehler, Andreas. 2019. Fahrradzukunft [Bicycle Future]. (Online-Publication.) https://fahrradzukunft.de/archiv/
Outram, Chrisine, Carlo Ratti, and Assaf Biderman. 2010. “The Copenhagen Wheel: An Innovative Electric Bicycle System That Harnesses the Power of Real-Time Information and Crowd Sourcing.” Paper presented at “Ecologic Vehicles, Renewable Energies,” Monaco, March 25. http://senseable.mit.edu/papers/pdf/20100325_Outram_etal_CopenhagenWheel_EcologicVehicles.pdf
Parker Hannafin. 2016. “9th Annual Chainless Challenge Puts Students to the Test.” Parker Hannafin, Cleveland, OH. http://blog.parker.com/9th-annual-chainless-challenge-puts-students-to-the-test
Ritchie, Andrew. 1996. Major Taylor: The Extraordinary Career of a Champion Bicycle Racer. Baltimore: Johns Hopkins University Press. https://archive.org/details/majortaylorextra00ritc
Rohloff, Bernhard, and Peter Greb. 2004. “Efficiency Measurements of Bicycle Transmission—A Neverending Story?” Human Power no. 55: 11–15. http://hupi.org/HParchive/PDF/hp55/hp55p11-15.pdf
Ron/Spinningmagnets. 2018. “BionX Reorganization? (They’re NOT Calling It a ‘Bankruptcy’).” ElectricBike, March 27. https://www.electricbike.com/bionx-reorganization/
Savaresi, Sergio. 2014. “E-Bikes: Present and Future of High-Tech Solutions.” Paper presented at the International Li-Ion E-Bike Industry Summit, Shanghai, April 13. http://www.datei.de/public/extraenergy/2014-EnergyBus/savaresi_china-cycle_2014.pdf
Schmidt, Theo. 2019. “Maximum Chain Efficiency.” Human Power eJournal no. 11: art. 27. http://hupi.org/HPeJ/0027/0027.html
Sharp, Archibald. 1896. Bicycles and Tricycles. London: Longmans, Green. Reprint, Cambridge, MA: MIT Press, 1977. https://mitpress.mit.edu/contributors/archibald-sharp
Spicer, James B., C. J. K. Richardson, M. J. Ehrlich, and J. R. Bernstein. 2000. “On the Efficiency of Bicycle Chain Drives.” Human Power no. 50 (Spring): 3–9. http://www.ihpva.org/HParchive/PDF/hp50-2000.pdf
Thijs, Derk. 2018. “Rowingbike over the Years.” RowingBike.com. https://rowingbike.com/en/modellen/historie/
Walton, Claire L., and John C. Walton. 2000. “Efficiency of Bicycle Chain Drives: Results at Constant Velocity and Supplied Power.” Human Power no. 51 (Fall): 14–15. http://www.ihpva.org/HParchive/PDF/hp51-2001.pdf
Whitt, Frank Rowland, and David Gordon Wilson. 1982. Bicycling Science. 2d ed. Cambridge, MA: MIT Press.
Wilson, Dave. 1999. “Transmission Efficiencies.” Human Power no. 48 (Summer): 20–22. http://www.ihpva.org/HParchive/PDF/hp48-1999.pdf
electricbikereview.com/mando/footloose-im/