{{Cite book| doi = 10.1007/978-3-319-94706-8_28| volume = 777| last1 = Skendraoui| first1 = N.| last2 = Bogard| first2 = F.| last3 = Murer| first3 = S.| last4 = Ahram| first4 = T.Z.| last5 = Fiok| first5 = K.| last6 = Taiar| first6 = R.| title = The musculoskeletal contribution in wheelchair propulsion systems: Numerical analysis| date = 2019}}