@article{richardson_phenology_2006,
	title = {Phenology of a northern hardwood forest canopy},
	volume = {12},
	journal = {Global Change Biology},
	author = {Richardson, A. D. and Bailey, A. S. and Denny, E. G. and Martin, C. W. and {O}},
	year = {2006},
	keywords = {HBR}
}