@article{20.500.12614/1670,
year = {2018},
url = {http://hdl.handle.net/20.500.12614/1670},
title = {Piezoelectricity and valley chern number in inhomogeneous hexagonal 2D crystals},
doi = {10.1038/s41699-018-0061-7},
volume = {2},
journal = {npj 2D Materials and Applications},
author = {Rostami H. and Guinea, Francisco and Polini M. and Roldán R.},
}