@article {3817,
	title = {Frost Hardiness of Picea rubens Growing in Spruce Decline Regions of the Appalachians},
	journal = {Tree Physiology},
	volume = {5},
	year = {1989},
	month = {March},
	pages = {25-37},
	keywords = {Climate, Forests, Pollution, Red spruce, Snow and ice},
	author = {Sheppard, L. J and Smith, R. I and Cannell, M. G. R}
}
