@article {4818,
	title = {How Fresh is Maple Syrup? Sugar Maple Trees Mobilize Carbon Stored Several Years Previously During Early Springtime Sap-ascent},
	journal = {New Phytologist},
	volume = {209},
	year = {2016},
	pages = {1410{\textendash}1416},
	doi = {10.1111/nph.13782},
	url = {https://nph.onlinelibrary.wiley.com/doi/full/10.1111/nph.13782},
	author = {Muhr, Jan and Messier, Christian and Delagrange, Sylvain and Trumbore, Susan and Xu, Xiaomei and Hartmann, Henrik}
}
