BibTex format
@article{Alexander:2019:10.3390/sym11091130,
author = {Alexander, S and Magueijo, J and Smolin, L},
doi = {10.3390/sym11091130},
journal = {Symmetry},
title = {The quantum cosmological constant},
url = {http://dx.doi.org/10.3390/sym11091130},
volume = {11},
year = {2019}
}