BibTex format
@article{Li:2021:10.1016/j.tibtech.2020.06.005,
author = {Li, C and Ouyang, L and Armstrong, J and Stevens, M},
doi = {10.1016/j.tibtech.2020.06.005},
journal = {Trends in Biotechnology},
pages = {150--164},
title = {Advances in the fabrication of biomaterials for gradient tissue engineering},
url = {http://dx.doi.org/10.1016/j.tibtech.2020.06.005},
volume = {39},
year = {2021}
}