@article{doi:10.1302/0301-620X.47B3.469,
author = {Nickel, Vernon L. and Waring, Worden},
title = {FUTURE DEVELOPMENTS IN EXTERNALLY POWERED ORTHOTIC AND PROSTHETIC DEVICES},
journal = {The Journal of Bone & Joint Surgery British Volume},
volume = {47-B},
number = {3},
pages = {469-471},
year = {1965},
doi = {10.1302/0301-620X.47B3.469},
url = {https://doi.org/10.1302/0301-620X.47B3.469}
}