@article{doi:,
author = {Mannaa, A. R. and Akyurt, M. and El-Kalay, A. K.},
title = {Six-Link Gripper for Cylindrical Objects},
journal = {Med J Islamic World Acad Sci},
volume = {3},
number = {1},
pages = {6-10},
year = {1990},
doi = {},
note ={doi: },

URL = {https://dx.doi.org/},
eprint = {https://dx.doi.org/}
}