© 2019. This manuscript version is made available under the Creative Commons CC-BY-NC-ND 4.0 license http://creativecommons.org/licenses/by-nc-nd/4.0/.
DOI: https://dx.doi.org/10.1016/j.frl.2019.101315
Except where otherwise noted, this item's license is described as © 2019. This manuscript version is made available under the Creative Commons CC-BY-NC-ND 4.0 license http://creativecommons.org/licenses/by-nc-nd/4.0/. DOI: https://dx.doi.org/10.1016/j.frl.2019.101315