BibTex format
@article{Gray:2021:10.3390/f12030297,
author = {Gray, REJ and Ewers, RM},
doi = {10.3390/f12030297},
journal = {Forests},
pages = {1--24},
title = {Monitoring forest phenology in a changing world},
url = {http://dx.doi.org/10.3390/f12030297},
volume = {12},
year = {2021}
}