1. Borislavov, B., Borisov, I., Panchev, V.: Design of a Planetary-Cyclo-Drive Speed Reducer, p. 90. Linnaeus University, Sweden (2012)
2. Kargin, P.A.: Application, synthesis, and manufacture of involute gear transmissions with asymmetric gear profiles. Russian Eng. Res. (2009). https://www.scopus.com/inward/record.url?eid=2-s2.0-74549177066&partnerID=40&md5=a0215a812e2f82ac45f170d3e9e79ddb
3. Kargin, P.A.: Prospects for involute transmissions with asymmetric tooth profiles. Russian Eng. Res. (2018). https://www.scopus.com/inward/record.url?eid=2-s2.0-84923830704&partnerID=40&md5=9b948d30799d12fcf885037f511f8c72
4. Beskopylny, A., Onishkov, N., Korotkin, V.: The contact mechanics of Novikov's surface-hardened gearing during running-in process, Adv. Tribol. (2018). https://www.scopus.com/inward/record.url?eid=2-s2.0-85053879977&partnerID=40&md5=baf8f035033c445747204081fd1f5dbd
5. Chirkin, A.V., et al.: Profiles of gear teeth. Russ. Eng. Res. 35(3), 167–170 (2015). https://doi.org/10.3103/C1068798X15030077